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Eapearl Chemical

Propylene Glycol Ethyl Ether

CAS 1569-02-4 C5H12O2 Other SDS published CLP Warning

⚠️ Note: This safety data sheet is provided in English; a localized version is being prepared.

MolGod_SDSCARD_1
REACH 2020/878
v2 · 08.09.2026

Specification

MFC5H12O2
Molecular weight104.15

Values are typical for the standard grade. Tighter specifications are available — state the target in your inquiry and we confirm against the production batch.

Hazard classification

GHS pictogram GHS02 — Flammable GHS pictogram GHS07 — Irritant / harmful

Warning

Harmonised classification (EU) — ECHA Annex VI (harmonised, ATP 23; 2026-07-07)

  • H226 Flammable liquid and vapour
  • H336 May cause drowsiness or dizziness
Precautionary statements (1)
  • P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking

European Chemicals Agency. "1-ethoxypropan-2-ol; 1-ethoxy-2-propanol; 2-ethoxy-1-methylethyl acetate; propylene glycol monoethyl ether; [1]; 2PG1EEA [2], Index No. 603-177-00-8." In Table 3 of Annex VI to Regulation (EC) No 1272/2008 (CLP Regulation), 23rd Adaptation to Technical Progress (harmonised list as of 2026-07-07). Helsinki: European Chemicals Agency, 2026. https://echa.europa.eu/information-on-chemicals/annex-vi-to-clp.

Technical reading on Propylene Glycol Ethyl Ether

Related products

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Modèle 3D 1-Ethoxy-2-propanol, CAS 1569-02-4, formule brute C5H12O2, masse molaire 104.15 g/mol

Données transcrites à partir de registres réglementaires et de la littérature spécialisée, avec indication de la source et de l'édition. Elles ne remplacent pas la fiche de données de sécurité du fournisseur. Les champs sans source enregistrée sont signalés comme tels.

📊 Données physicochimiques — CAS 1569-02-4MolGod_PROPHUB_MAIN
📊 Propriétés physicochimiques

Aperçu rapide

Formule : C5H12O2
MW : 104.15 g/mol
CAS : 1569-02-4
🔬 Propriétés avancées

Identifiants chimiques

SMILES: CCOCC(C)O

Dernière mise à jour : non confirmée

Aperçu chimique: 1-Ethoxy-2-propanolMolGod_OVERVIEW_1
Formule bruteC5H12O2[1]
Masse moléculaire104.15 g/mol[1]
Point de fusion-100 °C[1]
Point d'ébullition133 °C[1]
Densité0.9 g/cm³
LogP (lipophilie)0.2[1]
Nom IUPAC1-ethoxypropan-2-ol[1]
SMILESCCOCC(C)O[1]
InChIKeyJOLQKTGDSGKSKJ-UHFFFAOYSA-N[1]

Synonymes: 1-Ethoxy-2-propanol · 1569-02-4 · Propylene glycol ethyl ether · 2-PROPANOL, 1-ETHOXY- · ROT9EQO32E

Sources de données : PubChem (NLM/NIH)
Dernière mise à jour : 2026-09-21

📚 Références scientifiques (Chicago Author-Date) (1 sources)
  1. PubChem. National Center for Biotechnology Information (NIH/NLM), chemical compound database. dotyczy: Formule brute · Masse moléculaire · Point de fusion · Point d'ébullition · LogP (lipophilie) · Nom IUPAC · SMILES · InChIKey

RECHERCHE SCIENTIFIQUE

[1]CrossRef2020
Małgorzata Kucharska, Anna Kilanowicz. (2020). "Pentan-1-ol and its isomers: pentan-2-ol, pentan-3-ol,2-methylbutan-1-ol, 3-methylbutan-2-ol, 2-methylbutan-2-ol, 2,2-dimethylpropan-1-ol. Documentation p
[2]CrossRef2010
David Carteau, Pierre Pichat. (2010). "Degradation of an ether–alcohol (3-ethoxypropan-1-ol) by photo-Fenton-generated •OH radicals: products analysis and formation pathways; relevance to atmospheric
[3]CrossRef2003
G. A. Ol’. (2003). "Ol’, Andrey". Oxford Art Online. https://doi.org/10.1093/gao/9781884446054.article.t063389
[4]CrossRef1998
Pandharinath S. Nikam, Tukaram R. Mahale, Mehdi Hasan. (1998). "Densities and Viscosities for Ethyl Acetate + Pentan-1-ol, + Hexan-1-ol, + 3,5,5-Trimethylhexan-1-ol, + Heptan-1-ol, + Octan-1-ol, and +
[5]CrossRef1997
K. SHIOJIMA, Y. ARAI, T. NAKANE et al.. (1997). "ChemInform Abstract: Fern Constituents. Adiantum cuneatum. Part 2. Six New Triterpenoids, Neohop‐18‐en‐12α‐ol, 13‐Epineohop‐18‐en‐12α‐ol, Neohop‐13( 18
[6]CrossRef1994
M. BISHOP, K. A. HOLBROOK, G. A. OLDERSHAW et al.. (1994). "ChemInform Abstract: CO2 Laserinduced Decomposition of Propan‐2‐ol, Butan‐2‐ol, Pentan‐2‐ol, Pentan‐3‐ol, and Hexan‐2‐ol". ChemInform. https
[7]CrossRef1988
Isamu Nagata, Kazuhiro Tamura. (1988). "Excess molar enthalpies of (propan-1-ol or propan-2-ol + acetonitrile), (propan-1-ol or propan-2-ol + chlorobenzene), and (propan-1-ol or propan-2-ol + acetonit
[8]CrossRef
(0). "Rotational Spectra and Interstellar Search for Chiral and Achiral Butynols and Butenols: 3Butyn-2-ol, 3Buten-2-ol 3Butyn-1-ol, and 3Buten-1-ol". https://doi.org/10.1021/acsearthspacechem.5c00247
📚 Références scientifiques (Chicago Author-Date) 16 refs · 1 baz

MOLECULE Bibliographie par CAS (en direct depuis 13+ bases de données)

Sources : db:crossref (16)

  1. db:crossref Małgorzata Kucharska, Anna Kilanowicz. (2020). "Pentan-1-ol and its isomers: pentan-2-ol, pentan-3-ol,2-methylbutan-1-ol, 3-methylbutan-2-ol, 2-methylbutan-2-ol, 2,2-dimethylpropan-1-ol. Documentation proponowanych dopuszczalnych wielkości narażenia zawodowego". Podstawy i Metody Oceny Środowiska Pracy. https://doi.org/10.5604/01.3001.0014.3981
  2. db:crossref David Carteau, Pierre Pichat. (2010). "Degradation of an ether–alcohol (3-ethoxypropan-1-ol) by photo-Fenton-generated •OH radicals: products analysis and formation pathways; relevance to atmospheric water-phase chemistry". Research on Chemical Intermediates. https://doi.org/10.1007/s11164-010-0124-7
  3. db:crossref G. A. Ol’. (2003). "Ol’, Andrey". Oxford Art Online. https://doi.org/10.1093/gao/9781884446054.article.t063389
  4. db:crossref Pandharinath S. Nikam, Tukaram R. Mahale, Mehdi Hasan. (1998). "Densities and Viscosities for Ethyl Acetate + Pentan-1-ol, + Hexan-1-ol, + 3,5,5-Trimethylhexan-1-ol, + Heptan-1-ol, + Octan-1-ol, and + Decan-1-ol at (298.15, 303.15, and 308.15) K". Journal of Chemical & Engineering Data. https://doi.org/10.1021/je970253g
  5. db:crossref K. SHIOJIMA, Y. ARAI, T. NAKANE et al.. (1997). "ChemInform Abstract: Fern Constituents. Adiantum cuneatum. Part 2. Six New Triterpenoids, Neohop‐18‐en‐12α‐ol, 13‐Epineohop‐18‐en‐12α‐ol, Neohop‐13( 18)‐en‐19α‐ol, Fern‐7‐en‐25‐ol, Fern‐9(11)‐en‐25‐ol, and Adian‐5‐ en‐25‐ol.". ChemInform. https://doi.org/10.1002/chin.199743196
  6. db:crossref M. BISHOP, K. A. HOLBROOK, G. A. OLDERSHAW et al.. (1994). "ChemInform Abstract: CO2 Laserinduced Decomposition of Propan‐2‐ol, Butan‐2‐ol, Pentan‐2‐ol, Pentan‐3‐ol, and Hexan‐2‐ol". ChemInform. https://doi.org/10.1002/chin.199413074
  7. db:crossref Isamu Nagata, Kazuhiro Tamura. (1988). "Excess molar enthalpies of (propan-1-ol or propan-2-ol + acetonitrile), (propan-1-ol or propan-2-ol + chlorobenzene), and (propan-1-ol or propan-2-ol + acetonitrile + chlorobenzene) at 298.15 K". The Journal of Chemical Thermodynamics. https://doi.org/10.1016/0021-9614(88)90212-1
  8. db:crossref (0). "Rotational Spectra and Interstellar Search for Chiral and Achiral Butynols and Butenols: 3Butyn-2-ol, 3Buten-2-ol 3Butyn-1-ol, and 3Buten-1-ol". https://doi.org/10.1021/acsearthspacechem.5c00247.s002
  9. db:crossref (0). "Rotational Spectra and Interstellar Search for Chiral and Achiral Butynols and Butenols: 3Butyn-2-ol, 3Buten-2-ol 3Butyn-1-ol, and 3Buten-1-ol". https://doi.org/10.1021/acsearthspacechem.5c00247.s001
  10. db:crossref (0). "Isobaric VaporLiquid Equilibrium Data for Six Binary Systems: Prop-2-en-1-ol (1)Hexan-2-ol (2), Prop-2-en-1-ol (1)Hexan-2-one (2), Hexan-2-one (1)Hexan-2-ol (2) Prop-2-en-1-ol (1)4-Methyl-pentan-2-ol (2), Prop-2-en-1-ol (1)4-Methyl-pentan-2-one (2), and 4Methyl-pentan-2-one (1)4Methyl-pentan-2-ol (2) at 101.32 kPa". https://doi.org/10.1021/acs.jced.0c00861.s001
  11. db:crossref (0). "Butan-1-ol for industrial use". https://doi.org/10.3403/00159185u
  12. db:crossref (0). "Butan-1-ol for industrial use". https://doi.org/10.3403/00159185
  13. db:crossref (0). "Speeds of Sound, Densities, Isobaric Thermal Expansion, Compressibilities, and Internal Pressures of Heptan-1-ol, Octan-1-ol, Nonan-1-ol, and Decan-1-ol at Temperatures from (293 to 318) K and Pressures up to 100 MPa". https://doi.org/10.1021/je0604378.s002
  14. db:crossref (0). "Speeds of Sound, Densities, Isobaric Thermal Expansion, Compressibilities, and Internal Pressures of Heptan-1-ol, Octan-1-ol, Nonan-1-ol, and Decan-1-ol at Temperatures from (293 to 318) K and Pressures up to 100 MPa". https://doi.org/10.1021/je0604378.s011
  15. db:crossref (0). "Speeds of Sound, Densities, Isobaric Thermal Expansion, Compressibilities, and Internal Pressures of Heptan-1-ol, Octan-1-ol, Nonan-1-ol, and Decan-1-ol at Temperatures from (293 to 318) K and Pressures up to 100 MPa". https://doi.org/10.1021/je0604378.s014
  16. db:crossref (0). "Speeds of Sound, Densities, Isobaric Thermal Expansion, Compressibilities, and Internal Pressures of Heptan-1-ol, Octan-1-ol, Nonan-1-ol, and Decan-1-ol at Temperatures from (293 to 318) K and Pressures up to 100 MPa". https://doi.org/10.1021/je0604378.s007
Statut réglementaire de la substance
Cette substance est soumise à des exigences réglementaires : gestion des déchets dangereux (BDO). Détails dans la section « Statut réglementaire (REACH/ECHA/CLP) » et sur la FDS. Information réglementaire — ne restreint pas l'achat dans la boutique.
🧮 Calculateur stœchiométriqueMolGod_STOICH_1
🧪 Données chimiquesMolGod_CHEMDATA_1
Numéro CAS
1569-02-4
Formule brute
C5H12O2
Masse molaire
104.15 g/mol
Nom IUPAC (EN)
1-ethoxypropan-2-ol
SMILES
CCOCC(C)O
InChIKey
JOLQKTGDSGKSKJ-UHFFFAOYSA-N
📡 Data sourcesMolGod_SOURCES_1

The data in this widget comes from the following verified scientific sources:

  • PubChem — National Center for Biotechnology Information (NCBI/NIH), USA
  • ChEMBL — European Bioinformatics Institute (EMBL-EBI), UK
  • NIST WebBook — National Institute of Standards and Technology, USA

Data is cached locally for speed — the widget also works offline.

⚗️ Physicochemical propertiesMolGod_PHYSTAB_2
Density
0.896

Source: PubChem, NIST WebBook. Last updated: date not confirmed

🔍 Identifiants externesMolGod_EXTID_1
11 sur 16 systèmes d'ID69%
Base de donnéesIdentifiantActions
CAS Registry Number1569-02-4Ouvrir →
PubChem CID15287[1]Ouvrir →
InChIKeyJOLQKTGDSGKSKJ-UHFFFAOYSA-N[1]Ouvrir →
InChIInChI=1S/C5H12O2/c1-3-7-4-5(2)6/h5-6H,3-4H2,1-2H…[1]
SMILESCCOCC(C)O[1]
EC Number216-374-5[2]Ouvrir →
ChEMBLCHEMBL3188294[3]Ouvrir →
ChemSpider14552[4]Ouvrir →
UNII (FDA)ROT9EQO32EOuvrir →
NSC Number (NCI)2404Ouvrir →
WikiData QIDQ27288224Ouvrir →

Sources : PubChem (NIH), Wikidata SPARQL, KEGG, ChEMBL (EBI), CompTox CTX (EPA).

📚 Références scientifiques (Chicago Author-Date) (4 sources)
  1. PubChem. National Center for Biotechnology Information (NIH/NLM), chemical compound database. dotyczy: PubChem CID · InChIKey · InChI · SMILES
  2. ECHA. EC Inventory — EINECS, ELINCS, NLP and List Numbers assigned under REACH. Helsinki: European Chemicals Agency. dotyczy: EC Number
  3. ChEMBL. European Bioinformatics Institute (EMBL-EBI), bioactivity database. dotyczy: ChEMBL
  4. ChemSpider. Royal Society of Chemistry, chemical structure database. dotyczy: ChemSpider

Dalsza literatura

Publications thematically related to this CAS. They are not the source of any value given on this card.

Bibliographie (étendue) (1)

  1. ★★☆☆☆ CROSSREF 🔓 LIBRE ❓ non vérifié Pal, Amalendu, Sharma, Sanjay, Singh, Yoginder P.. 1997. "Excess Molar Volumes of Binary Liquid Mixtures of 1-Propanol and of 2-Propanol + Propane-1,2-diol, 1-Methoxy-2-propanol, 1-Ethoxy-2-propanol, and 1-<i>tert</i>-Butoxy-2-propanol and Water + 1-Methoxy-2-propanol and 1-Ethoxy-2-propanol at 298.15 K." Journal of Chemical & Engineering Data 42 (6): 1157-1160. https://doi.org/10.1021/je970106i. lien [consulté: 2026-09-23] CC0 (metadata)
📡 Spectroscopie — CAS 1569-02-4MolGod_SPECHUB_MAIN
📊 Bases de données de spectres spectroscopiques — données inline 9 sources MolGod_SPECDB_2

Les spectres sont récupérés à la demande depuis 9 sources. Chaque spectre est enregistré dans notre base — la prochaine ouverture = zéro requête vers l'API externe. Téléchargez JCAMP-DX / CSV / PNG pour chaque spectre sans avoir à chercher.

IR IR (Infrared) — NIST WebBook
Public domain (US Federal)
▶ Cliquez pour charger le spectre
🔗 Source
points
📚 NIST Chemistry WebBook, SRD 69
MS (NIST) Mass Spectrum (EI) — NIST WebBook
Public domain (US Federal)
▶ Cliquez pour charger le spectre
🔗 Source
points
📚 NIST Standard Reference Database 1A
UV-Vis UV/Visible Absorption — NIST WebBook
Public domain (US Federal)
▶ Cliquez pour charger le spectre
🔗 Source
points
📚 NIST Chemistry WebBook, SRD 69
¹H NMR NMR (¹H, ¹³C) — NMRShiftDB
CC-BY-SA 4.0
▶ Cliquez pour charger le spectre
🔗 Source
points
📚 Steinbeck C et al. (2003) J. Chem. Inf. Comput. Sci. 43(1):10–16 DOI: 10.1021/ci025588g
MS (MoNA) MoNA — MassBank of North America
CC-BY 4.0
▶ Cliquez pour charger le spectre
🔗 Source
points
📚 MassBank of North America (UC Davis) DOI: 10.1002/jms.1777
IR/NMR/MS (SDBS) SDBS — Spectral Database for Organic Compounds (Japan AIST)
Free for non-commercial

Source de référence — pas d'API publique. Ouvrir dans une base externe :

🔗 IR/NMR/MS (SDBS) →
📚 SDBSWeb: https://sdbs.db.aist.go.jp (AIST, Japan)
JP Monograph Japanese Pharmacopoeia — Monographs
Reference only

Source de référence — pas d'API publique. Ouvrir dans une base externe :

🔗 JP Monograph →
📚 Japanese Pharmacopoeia 18th Edition (2021)
WHO INN WHO — International Nonproprietary Names
WHO Model Lists (free)

Source de référence — pas d'API publique. Ouvrir dans une base externe :

🔗 WHO INN →
📚 WHO INN Programme
DOAJ DOAJ — Directory of Open Access Journals
OA journal index (mixed)

Source de référence — pas d'API publique. Ouvrir dans une base externe :

🔗 DOAJ →
📚 DOAJ — doaj.org
🔬 Spectres interactifs (live — NIST / MoNA / NMRShiftDB / SDBS) (2)

Données récupérées en direct depuis plusieurs sources (priority-chain). JCAMP-DX / CSV / PNG disponibles au téléchargement sous chaque spectre.

IR — infrarouge à transformée de Fourier

Chargement de IR — infrarouge à transformée de Fourier…

MS — spectrométrie de masse (EI 70eV)

Chargement de MS — spectrométrie de masse (EI 70eV)…

Propriétés structurellesMolGod_STRUCT3D_1

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❓ Questions fréquentes (3)MolGod_FAQ_1
What is 1569-02-4?
1569-02-4 (CAS 1569-02-4) is a chemical compound. The chemical data comes from PubChem (National Institutes of Health, USA).
Utile ?
What is the CAS number of 1569-02-4?
The CAS number for 1569-02-4 is 1569-02-4. A CAS Registry Number is the standard identifier for a chemical substance in scientific literature and in trade.
Utile ?
How should 1569-02-4 be stored?
1569-02-4 should be stored as its safety data sheet directs \— typically in a dry, cool, well-ventilated place, away from heat and from materials it is incompatible with.
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Fichiers de structure moléculaire issus de la base PubChem (NIH). Compatibles avec les logiciels : Avogadro, PyMOL, Jmol, ChemDraw.

Source : PubChem, National Library of Medicine (NIH). CID: 15287

🔄 Convertisseur d'unités de concentration LIVE MolGod_UNITCONV_1

Saisissez la concentration 1-Ethoxy-2-propanol dans n'importe quelle unité — le reste sera calculé automatiquement.

MW : 104.15 g/mol · IUPAC Gold Book ↗

⚗️ Formules de conversion + citations (par formule)
ConversionFormulePrécisionSource
% (w/v) ↔ molarityc (mol/L) = (% × 10) / MW±0.5% rel. when density ≈ 1.0 g/mLIUPAC (2019)
millimolar ↔ molarc (mol/L) = mM × 10⁻³ExactCohen ER, Cvitaš T, Frey JG, Holmström B, Kuchitsu K, Marquardt R, Mills I, Pavese F, Quack M, Stohner J, Strauss HL, Takami M, Thor AJ (2007)
molarity (mol/L)c = n/V = (m/MW)/V±0.1% (depends on MW precision)IUPAC (2019)
parts per million (mg/L) ↔ molarityc (mol/L) = ppm / (1000 × MW); equivalently ppm = mg/L for dilute aqueous±1% (density-independent for dilute solutions)IUPAC (2019)
mg/mL ↔ molarityc (mol/L) = (mg/mL × 1000) / MW / 1000 = mg/mL / MW × 1±0.2%Cohen ER, Cvitaš T, Frey JG, Holmström B, Kuchitsu K, Marquardt R, Mills I, Pavese F, Quack M, Stohner J, Strauss HL, Takami M, Thor AJ (2007)
g/L ↔ molarityc (mol/L) = (g/L) / MW±0.1% (depends on MW precision)Cohen ER, Cvitaš T, Frey JG, Holmström B, Kuchitsu K, Marquardt R, Mills I, Pavese F, Quack M, Stohner J, Strauss HL, Takami M, Thor AJ (2007)
mmol/L ↔ molarityc (mol/L) = mmol/L × 10⁻³ExactCohen ER, Cvitaš T, Frey JG, Holmström B, Kuchitsu K, Marquardt R, Mills I, Pavese F, Quack M, Stohner J, Strauss HL, Takami M, Thor AJ (2007)
Celsius ↔ KelvinT(K) = t(°C) + 273.15±0.01 K (ITS-90 scale)BIPM (Bureau International des Poids et Mesures) (2019)
Celsius ↔ FahrenheitT(°F) = T(°C) × 9/5 + 32±0.1 °FThompson A, Taylor BN (2008)
density-corrected % ↔ molarityc (mol/L) = (%w/w × ρ × 10) / MW, ρ in g/mL±0.1% when ρ known to 3 decimalsCohen ER, Cvitaš T, Frey JG, Holmström B, Kuchitsu K, Marquardt R, Mills I, Pavese F, Quack M, Stohner J, Strauss HL, Takami M, Thor AJ (2007)
📚 Bibliographie (8 sources faisant autorité)
  1. Thompson A, Taylor BN (2008). Guide for the Use of the International System of Units (SI). NIST Special Publication 811 · DOI: 10.6028/NIST.SP.811-2008
    → Primary SI standard for US scientific usage
  2. Cohen ER, Cvitaš T, Frey JG, Holmström B, Kuchitsu K, Marquardt R, Mills I, Pavese F, Quack M, Stohner J, Strauss HL, Takami M, Thor AJ (2007). Quantities, Units and Symbols in Physical Chemistry — The IUPAC Green Book. RSC Publishing, 3rd ed. · DOI: 10.1039/9781847557889 · ISBN: 978-0-85404-433-7
    → Canonical IUPAC guide for chemistry quantities/units
  3. BIPM (Bureau International des Poids et Mesures) (2019). The International System of Units (SI), 9th edition. BIPM ·
    → International SI definitions (incl. redefined kilogram 2019)
  4. ISO/IEC (2022). Quantities and units — Part 1: General. International Organization for Standardization — ISO 80000-1:2022 ·
    → General rules for physical quantities and units
  5. ISO/IEC (2019). Quantities and units — Part 9: Physical chemistry and molecular physics. International Organization for Standardization — ISO 80000-9:2019 ·
    → Concentration / molality / amount-of-substance conventions
  6. Tiesinga E, Mohr PJ, Newell DB, Taylor BN (2021). CODATA recommended values of the fundamental physical constants: 2018. Rev. Mod. Phys. 93(2):025010 · DOI: 10.1103/RevModPhys.93.025010
    → Avogadro, gas constant, molar volume (2019 SI revision)
  7. IUPAC (2019). Compendium of Chemical Terminology — the IUPAC Gold Book (online). IUPAC · DOI: 10.1351/goldbook
    → Definitions of mass fraction, molality, normality, ppm, activity
  8. Mills IM, Cvitaš T, Homann K, Kallay N, Kuchitsu K (1988). Quantities, Units and Symbols in Physical Chemistry. Blackwell Scientific Publications, 1st ed. · ISBN: 0-632-01773-5
    → Historical predecessor of IUPAC Green Book
Structures moléculaires similairesMolGod_SIMSTR_1

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🧪 Assistant de préparation de solution WIZARD MolGod_PREP_1
① Sélectionnez la concentration
② Volume cible
③ Solvant

Calculs selon : IUPAC Gold Book ↗, Merck ↗

Chimie computationnelleMolGod_COMPCHEM_1

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🛡️ Sécurité — CAS 1569-02-4MolGod_SAFEHUB_MAIN
Avis sur les limitations des données. Les informations de sécurité figurant sur cette page sont fournies à titre indicatif et ne remplacent pas une fiche de données de sécurité (SDS) complète. Avant d'utiliser le produit, consultez la fiche de données de sécurité actuelle du fabricant ainsi que les directives GHS/CLP. La classification CLP s'applique à la substance pure en vrac, et non aux préparations commerciales.

Classification GHS/CLP — Règlement (CE) n° 1272/2008 + UN GHS Rev. 9 (2021).

⚠ Attention (Warning)
GHS02 — Inflammable
GHS02 Inflammable
GHS07 — Irritant / nocif
GHS07 Irritant / nocif

🚨 Mentions de danger (H)

  • H226 — Liquide et vapeurs inflammables.
  • H336 — Peut provoquer somnolence ou vertiges.

🛡 Conseils de prudence (P)

  • P210 — Tenir à l'écart de la chaleur, des surfaces chaudes, des étincelles, des flammes nues et de toute autre source d'inflammation. Ne pas fumer.

✓ Classification harmonisée conformément à l'annexe VI du règlement CLP (CE) 1272/2008 (classification officielle, contraignante). Numéro d'index : 603-177-00-8.

Référence (Chicago) : European Chemicals Agency. "1-ethoxypropan-2-ol; 1-ethoxy-2-propanol; 2-ethoxy-1-methylethyl acetate; propylene glycol monoethyl ether; [1]; 2PG1EEA [2], Index No. 603-177-00-8." In Table 3 of Annex VI to Regulation (EC) No 1272/2008 (CLP Regulation), 23rd Adaptation to Technical Progress (harmonised list as of 2026-07-07). Helsinki: European Chemicals Agency, 2026. https://echa.europa.eu/information-on-chemicals/annex-vi-to-clp.

Traductions : Règlement CLP (CE) 1272/2008, Annexe III et IV. Données : PubChem/NLM.

📚 Références scientifiques consolidées — Chicago auteur-date 10 sources

Références collectées dans tous les onglets du Safety Hub. CAS : 1569-02-4 · PubChem ↗

  1. Parlament Europejski i Rada UE. 2008. "Rozporządzenie (WE) nr 1272/2008 w sprawie klasyfikacji, oznakowania i pakowania substancji (CLP)." Dz.Urz. UE L 353. [↗] GHS, Réglementations
  2. United Nations Economic Commission for Europe (UNECE). 2021. "Globally Harmonized System of Classification and Labelling of Chemicals (GHS), Ninth Revised Edition." United Nations, Geneva. [↗] GHS
  3. Goldfrank, Lewis R., Robert S. Hoffman, Mary Ann Howland, et al.. 2019. "Goldfrank's Toxicologic Emergencies, 11th ed.." McGraw-Hill Education, New York. ISBN 978-1-25-985961-8. Pierwsza pomoc, Toksykologia
  4. National Institute for Occupational Safety and Health (NIOSH). 2023. "NIOSH Pocket Guide to Chemical Hazards (DHHS Publ. 2005-149)." U.S. Department of Health and Human Services / CDC, Cincinnati, OH. [↗] Pierwsza pomoc, PPE, Toksykologia
  5. European Committee for Standardization (CEN). 2016. "EN 374-1:2016 — Protective gloves against dangerous chemicals and micro-organisms." CEN, Brussels. [↗] PPE
  6. UNECE. 2023. "European Agreement Concerning the International Carriage of Dangerous Goods by Road (ADR 2025)." United Nations, Geneva. [↗] Utylizacja, Regulacje
  7. National Fire Protection Association (NFPA). 2022. "NFPA 400 — Hazardous Materials Code." NFPA, Quincy, MA. [↗] Magazynowanie
  8. Urben, P.G. (ed.). 2017. "Bretherick's Handbook of Reactive Chemical Hazards, 8th ed.." Butterworth-Heinemann / Elsevier, Oxford. [↗] Magazynowanie
  9. Ministerstwo Klimatu i Środowiska RP. 2023. "Baza danych o produktach i opakowaniach oraz o gospodarce odpadami (BDO)." Ministerstwo Klimatu i Środowiska, Warszawa. [↗] Utylizacja
  10. International Agency for Research on Cancer (IARC / WHO). 2024. "IARC Monographs on the Identification of Carcinogenic Hazards to Humans — List of Classifications." WHO, Lyon. [↗] Toksykologia

Les onglets possédant leurs propres références (Emergency, PPE, Storage, Waste) contiennent des entrées bibliographiques supplémentaires au sein de leurs sections respectives.

📈 Statistiques analytiques (test t · RSD · Grubbs · Q-Dixon) ICH Q2

Collez une série de mesures répétées (CSV ou un nombre par ligne). Le calculateur calculera la moyenne, l'écart-type, l'IC à 95 %, et détectera les valeurs aberrantes (Grubbs + Dixon Q).

Séparateur : virgule, espace, tabulation, nouvelle ligne. Min. 3 mesures.
📐 Formules statistiques
  • x̄ = Σxᵢ / n — moyenne arithmétique
  • s² = Σ(xᵢ - x̄)² / (n-1) — variance de l'échantillon
  • s = √s² — écart-type
  • RSD% = (s / x̄) × 100% — écart-type relatif
  • CI₉₅ = x̄ ± t(0.05, n-1) × s / √n — Student's t
  • G = |xᵢ - x̄| / s — test de Grubbs
  • Q = |xsuspect - xnearest| / |xmax - xmin| — Dixon Q-test

Source : ICH Q2(R2) Validation of Analytical Procedures · ICH PDF ↗

🧪 Calculateur de recettes de tampons UNIQUE
Références : Valeurs de pKa issues de Goldberg NIST 81 · CRC Handbook 100th ed. · Stoll & Blanchard 1990 (DOI)

Choisissez un tampon dans la liste de 20 systèmes courants → saisissez le pH cible → vous obtiendrez une recette exacte avec les masses à peser.

Étape 1 : Choisissez un système tampon

📜 Historique des recettes (10 dernières)
Statut pharmacologique

Prekliniczny

Phase I
Phase II
Phase III
Approuvé

Préclinique — aucune donnée issue d'études sur l'homme.

ChEMBL CHEMBL3188294 ↗

Bibliographie (étendue) (1)

  1. ★★☆☆☆ CROSSREF 🔓 LIBRE ❓ non vérifié Pal, Amalendu, Sharma, Sanjay, Singh, Yoginder P.. 1997. "Excess Molar Volumes of Binary Liquid Mixtures of 1-Propanol and of 2-Propanol + Propane-1,2-diol, 1-Methoxy-2-propanol, 1-Ethoxy-2-propanol, and 1-<i>tert</i>-Butoxy-2-propanol and Water + 1-Methoxy-2-propanol and 1-Ethoxy-2-propanol at 298.15 K." Journal of Chemical & Engineering Data 42 (6): 1157-1160. https://doi.org/10.1021/je970106i. lien [consulté: 2026-09-23] CC0 (metadata)
📅 Project Planner — Gestionnaire d'expériences de laboratoire NOUVEAU

Planifiez l'ensemble de votre projet de laboratoire : ajoutez des expériences avec réactifs, réplicats et durée. Vous obtiendrez un diagramme de Gantt, une liste d'achats (avec des liens vers la boutique !), un budget avec une marge de 10 % et une matrice de risques GHS.

🧪 Solubilité et compatibilité avec les solvants MolGod_SOLUB_1
Molécule
1-Ethoxy-2-propanol
Formule
C5H12O2
logP (XLogP3)
0.20
Masse (g/mol)
104.15
Polarité
Modérée

⚠️ Estimation GC (Hoftyzer-Van Krevelen). Aucune donnée HSP de la littérature pour ce CAS — précision ±2 MPa½. À vérifier expérimentalement.

Ra < R₀ = good miscibility · Ra < 1,5×R₀ = borderline · above = poor (R₀ — radius of the Hansen sphere of this molecule) For this molecule R₀ = 8..

Solvant Compat. Ra Visuel GC-MS HPLC Applications Références
Water (H₂O)366 g/L (pomiar)
✗ NieA (aqueous) (RP)
buffercell cultureanalyticalextraction (hydrophilic)
Ethanol (EtOH)brak podstawy✗ NieA/B modifier (RP/NP)
extractionspectroscopy (UV-Vis)synthesisHPLC modifier
Methanol (MeOH)brak podstawy✗ NieA/B (RP) (RP)
HPLC (eluent)LC-MSKarl FischerUV-transparent to 205 nm
Acetonebrak podstawy✗ NieB modifier (NP)
GC headspacecrystallisationdegreasingsynthesis
Acetonitrile (ACN)brak podstawy✗ NieB (RP) (RP)
HPLC eluent (gold standard)LC-MS (low UV cut-off, 190 nm)peptide analysis
DMSObrak podstawy✗ NieN/A (N/A)
NMR (d6-DMSO)cell biology (cryopreservation)drug deliverysynthesis
THFbrak podstawy✗ NieB (NP) (NP)
GPC/SEC (polymer analysis)Grignard synthesisorganometallics
DCM (CH₂Cl₂)brak podstawy✓ TakB (NP) (NP)
extractionNP-HPLCGC-MScrystallisation (anti-solvent)
Chloroform (CHCl₃)brak podstawy✓ TakN/A (toxic) (N/A)
NMR (CDCl3)lipid extraction (Folch method)NP-TLC
Hexanebrak podstawy✓ TakA (NP) (NP)
NP-HPLCoil extraction (lipids)GC-MSTLC (NP)
Toluenebrak podstawy✓ TakB (NP) (NP)
NMR (d8-toluene)synthesisazeotropic drying (Dean-Stark)
📚 Références scientifiques pour les solvants (Chicago Author-Date) — cliquez pour développer

11 solvents · 54 full citations (NIST/CRC/IARC/Hansen/Reichardt/Smallwood/Wypych/Armarego/Snyder/GESTIS) — below.

Water (H₂O)
  1. NIST — NIST Chemistry WebBook — Water (CAS 7732-18-5)
  2. CRC — CRC Handbook of Chemistry and Physics, 104th ed., Sec. 8 (Properties of Water)
  3. IAPWS — IAPWS Release on Static Dielectric Constant of Water
  4. Reichardt 2011 — Solvents and Solvent Effects in Organic Chemistry
  5. GESTIS — GESTIS Substance Database — Water
Ethanol (EtOH)
  1. NIST — NIST Chemistry WebBook — Ethanol (CAS 64-17-5)
  2. CRC — CRC Handbook — Ethanol physical constants
  3. Snyder & Kirkland — Modern Liquid Chromatography — Ethanol eluotropic
  4. Smallwood — Handbook of Organic Solvent Properties — Ethanol
  5. GESTIS — GESTIS Substance Database — Ethanol
Methanol (MeOH)
  1. NIST — NIST Chemistry WebBook — Methanol (CAS 67-56-1)
  2. CRC — CRC Handbook — Methanol physical constants
  3. Snyder & Kirkland — Modern Liquid Chromatography — MeOH eluotropic, eo=0.95
  4. GESTIS — GESTIS Substance Database — Methanol
Acetone
  1. NIST — NIST Chemistry WebBook — Acetone (CAS 67-64-1)
  2. CRC — CRC Handbook — Acetone physical & thermodynamic constants
  3. Hansen 2007 — Hansen Solubility Parameters — Acetone (dD=15.5, dP=10.4, dH=7.0)
  4. Smallwood — Handbook of Organic Solvent Properties — Acetone
  5. GESTIS — GESTIS Substance Database — Acetone
Acetonitrile (ACN)
  1. NIST — NIST Chemistry WebBook — Acetonitrile (CAS 75-05-8)
  2. CRC — CRC Handbook — Acetonitrile constants
  3. Snyder & Kirkland — Modern Liquid Chromatography — ACN gold-standard HPLC eluent
  4. Reichardt 2011 — Solvents and Solvent Effects — ACN dipolar aprotic
  5. GESTIS — GESTIS Substance Database — Acetonitrile
DMSO
  1. NIST — NIST Chemistry WebBook — DMSO (CAS 67-68-5)
  2. Wypych 2019 — Handbook of Solvents Vol. 1 — DMSO comprehensive properties
  3. Hansen 2007 — HSP — DMSO (dD=18.4, dP=16.4, dH=10.2)
  4. Reichardt 2011 — Solvents and Solvent Effects — DMSO E_T(30)=45.1, dipolar aprotic
  5. GESTIS — GESTIS Substance Database — DMSO
THF
  1. NIST — NIST Chemistry WebBook — THF (CAS 109-99-9)
  2. Armarego 2009 — Purification of Laboratory Chemicals — THF drying & peroxide test
  3. Hansen 2007 — Hansen Solubility Parameters — THF (dD=16.8, dP=5.7, dH=8.0)
  4. Smallwood — Handbook of Organic Solvent Properties — THF
  5. GESTIS — GESTIS Substance Database — Tetrahydrofuran
DCM (CH₂Cl₂)
  1. NIST — NIST Chemistry WebBook — Dichloromethane (CAS 75-09-2)
  2. IARC 71 — IARC Monograph 71 — DCM (Group 2A carcinogen)
  3. Hansen 2007 — Hansen Solubility Parameters — DCM (dD=18.2, dP=6.3, dH=6.1)
  4. Reichardt 2011 — Solvents and Solvent Effects — DCM polarity index
  5. GESTIS — GESTIS Substance Database — Dichloromethane
Chloroform (CHCl₃)
  1. NIST — NIST Chemistry WebBook — Chloroform (CAS 67-66-3)
  2. IARC 73 — IARC Monograph 73 — Chloroform (Group 2B carcinogen)
  3. Hansen 2007 — Hansen Solubility Parameters — CHCl3 (dD=17.8, dP=3.1, dH=5.7)
  4. Reichardt 2011 — Solvents and Solvent Effects — CHCl3 H-bond donor strength
  5. GESTIS — GESTIS Substance Database — Chloroform
n-Hexane
  1. NIST — NIST Chemistry WebBook — n-Hexane (CAS 110-54-3)
  2. ATSDR n-Hexane — ATSDR Toxicological Profile for n-Hexane — neuropatia obwodowa (n-Heksan NIE jest kancerogenem IARC)
  3. Hansen 2007 — Hansen Solubility Parameters — n-Hexane (dD=14.9, dP=0, dH=0)
  4. Snyder & Kirkland — Modern Liquid Chromatography — n-Hexane NP standard, eo=0.00
  5. GESTIS — GESTIS Substance Database — n-Hexane
Toluene
  1. NIST — NIST Chemistry WebBook — Toluene (CAS 108-88-3)
  2. IARC 71 — IARC Monograph 71 — Toluene
  3. Hansen 2007 — Hansen Solubility Parameters — Toluene (dD=18.0, dP=1.4, dH=2.0)
  4. Smallwood — Handbook of Organic Solvent Properties — Toluene
  5. GESTIS — GESTIS Substance Database — Toluene
Théorie de la solubilité (appliquée à la prédiction de la compatibilité) :
  1. Yalkowsky, Samuel H., and Shri C. Valvani. 1980. "Solubility and Partitioning I: Solubility of Nonelectrolytes in Water." Journal of Pharmaceutical Sciences 69 (8): 912–922. https://doi.org/10.1002/jps.2600690814 — General Solubility Equation (GSE): logS = 0.5 − logP − 0.01(MP−25).
  2. Hansen, Charles M. 2007. Hansen Solubility Parameters: A User's Handbook. 2nd ed. CRC Press. https://doi.org/10.1201/9781420006834 — Triplet HSP (dD, dP, dH) + formule Ra.
  3. Stefanis, E., and C. Panayiotou. 2008. "Prediction of Hansen Solubility Parameters with a New Group-Contribution Method." Int J Thermophys 29: 568–585. https://doi.org/10.1007/s10765-008-0415-z
  4. Reichardt, Christian, and Thomas Welton. 2011. Solvents and Solvent Effects in Organic Chemistry. 4th ed. Wiley-VCH. https://doi.org/10.1002/9783527632220 — E_T(30) polarity scale, solwatochromia.
  5. Snyder, Lloyd R., Joseph J. Kirkland, and John W. Dolan. 2010. Introduction to Modern Liquid Chromatography. 3rd ed. Wiley. https://doi.org/10.1002/9780470508183 — Eluotropic series, polarity index.
  6. Van Krevelen, D. W., and K. Te Nijenhuis. 2009. Properties of Polymers. 4th ed. Elsevier. https://doi.org/10.1016/B978-0-08-054819-7.X0001-5 — Hoftyzer–Van Krevelen group contribution dla dD/dP/dH z SMILES.
  7. Marcus, Yizhak. 1998. The Properties of Solvents. Wiley Series in Solution Chemistry, Vol. 4. ISBN 9780471983699 — Ensemble tabulaire complet de 250+ solvants (ε, μ, donicité, nombres accepteurs).
  8. PubChem Compound Database — CAS 1569-02-4 lookup ↗ — logP (XLogP3), water solubility experimental + predicted.

Bibliographie complète dans l'accordéon RÉFÉRENCES (en bas de la page) — Chicago Manual of Style 17th ed., Author-Date.

⚗️ Vérifier la compatibilité de la réaction MolGod_RXNCOMP_1
1 2 0
Santé : 1/4
Inflammabilité : 2/4
Réactivité : 0/4
Selon NFPA 704 / calculé à partir des codes H

Vérifiez si 1-Ethoxy-2-propanol est compatible avec un autre réactif

📦 Matrice de compatibilité de stockage
Acides Bases Oxydants Inflammable Toxique Gazy
Acides
Bases
Oxydants
Inflammable
Toxique
Gazy
✓ Stockage commun possible · ⚠ Prudence · ✗ NE PAS stocker ensemble · OSHA Chemical Segregation ↗

Données de compatibilité issues de : Bretherick's Handbook (7th ed.) ↗, GESTIS ↗, ECHA REACH ↗, NFPA 704 ↗

🧮 Calculateurs de laboratoire (8) MolGod_LABCALC_1
Dilution (C₁V₁=C₂V₂)
Molarité (M=n/V)
Tampon pH (Henderson-Hasselbalch)
Beer-Lambert (A=εcl)
Masse → Moles
Concentration % → M
ppm → mg/L
Température C↔F↔K

Formules vérifiées : IUPAC Gold Book ↗, DOI ↗

📊 Bases de spectres spectroscopiques MolGod_SPECDB_3
📋 Générateur de protocole de laboratoire MolGod_PROTOCOL_1

Protocole généré à partir de : GHS SDS, Aldrich Lab Guide ↗

🏷️ Générateur d'étiquette (QR) MolGod_LABEL_1
Propylene Glycol Ethyl Ether• 1-Ethoxy-2-propanol / 1-Ethoxypropan-2-ol• IUPAC: 1-ethoxypropan-2-ol• CAS: 1569-02-4• EC: 216-374-5• Formule: C5H12O2• Masse: 104.15 g/molATTENTIONMENTIONS DE DANGER GHS :H226: Liquide et vapeurs inflammables.H336: Peut provoquer somnolence ou vertiges.P210: Tenir à l'écart de la chaleur, des surfaces chaudes, des étincelles,des flammes nues et de toute autre source d'inflammation. Ne pas fumer.Anhui Eapearl Chemical Co., Ltd.12th Floor, Tongguan Number Valley, Tongling, Anhui, China+86 186 5620 1888[email protected]epchems.com
Deskryptory Lipinskiego (struktura)

Diagramme radar de drug-likeness (Lipinski Ro5 / Veber). Zone verte = conformité aux critères.

Données prédictives — propriétés calculées in silico (SMILES/RDKit). Elles ne remplacent pas les études cliniques. Ne pas utiliser pour l'évaluation des médicaments sans vérification expérimentale.

MW104.2LogP0.2HBD1HBA2RotB3TPSA29.5 Ų
✓ Lipinski Ro5✓ Veber✓ Egan✗ Ghose (MW=104)✗ REOS (MW=104)✓ Lead-like Ro3
PropriétéValeurÉvaluation
Absorption (GI)élevée
Perméabilité BHEoui (traverse)
Biodisponibilité (Daina 2017)
55%
CYP450 profileCYP1A2 non-inhibitorCYP2C9 non-inhibitorCYP2C19 non-inhibitorCYP2D6 non-inhibitorCYP3A4 non-inhibitor
Alertes PAINS0
Alertes Brenk0
pKa (pH 7.4)7 (heuristic)
hERG (cardiotox.)
Substrat de la P-gp
Mutagénicité Ames✓ non
DILI (hépatotox.)
LogS (solub. aq.)
Sources (méthodologie ADMET)
  1. Lipinski, Christopher A., Franco Lombardo, Beryl W. Dominy, and Paul J. Feeney. 1997. "Experimental and computational approaches to estimate solubility and permeability in drug discovery and development settings." Advanced Drug Delivery Reviews 23 (1-3): 3-25.
  2. Veber, Daniel F., Stephen R. Johnson, Hung-Yuan Cheng, et al. 2002. "Molecular properties that influence the oral bioavailability of drug candidates." Journal of Medicinal Chemistry 45 (12): 2615-2623.
  3. Daina, Antoine, Olivier Michielin, and Vincent Zoete. 2017. "SwissADME: a free web tool to evaluate pharmacokinetics, drug-likeness and medicinal chemistry friendliness." Scientific Reports 7: 42717.
  4. Egan, William J., and Gregory Lauri. 2002. "Prediction of intestinal permeability." Advanced Drug Delivery Reviews 54 (3): 273-289.
  5. Baell, Jonathan B., and Georgina A. Holloway. 2010. "New substructure filters for removal of pan assay interference compounds (PAINS) from screening libraries." Journal of Medicinal Chemistry 53 (7): 2719-2740.
  6. Brenk, Ruth, Alessandro Schipani, Daniel James, et al. 2008. "Lessons learnt from assembling screening libraries for drug discovery for neglected diseases." ChemMedChem 3 (3): 435-444.
  7. Ertl, Peter, and Ansgar Schuffenhauer. 2009. "Estimation of synthetic accessibility score of drug-like molecules based on molecular complexity and fragment contributions." Journal of Cheminformatics 1: 8.
  8. Bickerton, G. Richard, Gaia V. Paolini, Jérémy Besnard, Sorel Muresan, and Andrew L. Hopkins. 2012. "Quantifying the Chemical Beauty of Drugs." Nature Chemistry 4 (2): 90-98.
  9. Hopkins, Andrew L., and Colin R. Groom. 2002. "The Druggable Genome." Nature Reviews Drug Discovery 1 (9): 727-730.
  10. Ghose, Arup K., Vellarkad N. Viswanadhan, and John J. Wendoloski. 1999. "A Knowledge-Based Approach in Designing Combinatorial or Medicinal Chemistry Libraries for Drug Discovery." Journal of Combinatorial Chemistry 1 (1): 55-68.
  11. Tice, Raymond R., Christopher P. Austin, Robert J. Kavlock, and John R. Bucher. 2013. "Improving the Human Hazard Characterization of Chemicals: A Tox21 Update." Environmental Health Perspectives 121 (7): 756-765.
  12. Leeson, Paul D., and Brian Springthorpe. 2007. "The Influence of Drug-Like Concepts on Decision-Making in Medicinal Chemistry." Nature Reviews Drug Discovery 6 (11): 881-890.
  13. Hann, Michael M. 2011. "Molecular Obesity, Potency and Other Addictions in Drug Discovery." MedChemComm 2 (5): 349-355.
  14. Davies, Mark, Michał Nowotka, George Papadatos, et al. 2015. "ChEMBL Web Services: Streamlining Access to Drug Discovery Data and Utilities." Nucleic Acids Research 43 (W1): W612-W620.
  15. Walters, W. Patrick, and Mark A. Murcko. 2002. "Prediction of 'Drug-Likeness.'". Advanced Drug Delivery Reviews 54 (3): 255–271. https://doi.org/10.1016/S0169-409X(02)00003-0.
  16. Congreve, Miles, Robin Carr, Christopher Murray, and Harren Jhoti. 2003. "A 'Rule of Three' for Fragment-Based Lead Discovery?" Drug Discovery Today 8 (19): 876–877. https://doi.org/10.1016/S1359-6446(03)02831-9.
  17. Brenk, Ruth, Alessandro Schipani, Daniel James, Agata Krasowski, Iain Hugh Gilbert, Julie Frearson, and Paul Graham Wyatt. 2008. "Lessons Learnt from Assembling Screening Libraries for Drug Discovery for Neglected Diseases." ChemMedChem 3 (3): 435-444.
  18. Schomburg, Karen T., Sascha Bietz, Hans Briem, Andrea M. Henzler, Stefan Urbaczek, and Matthias Rarey. 2014. "Facing the Challenges of Structure-Based Target Prediction by Inverse Virtual Screening." Journal of Chemical Information and Modeling 54 (6): 1676-1686.
  19. Bemis, Guy W., and Mark A. Murcko. 1996. "The Properties of Known Drugs. 1. Molecular Frameworks." Journal of Medicinal Chemistry 39 (15): 2887-2893.
  20. Schomburg, Karen T., and Matthias Rarey. 2014. "What Is the Potential of Structure-Based Target Prediction Methods?" Future Medicinal Chemistry 6 (17): 1987-1989.
  21. Małgorzata Kucharska, Anna Kilanowicz. (2020). "Pentan-1-ol and its isomers: pentan-2-ol, pentan-3-ol,2-methylbutan-1-ol, 3-methylbutan-2-ol, 2-methylbutan-2-ol, 2,2-dimethylpropan-1-ol. Documentation proponowanych dopuszczalnych wielkości narażenia zawodowego". Podstawy i Metody Oceny Środowiska Pracy. https://doi.org/10.5604/01.3001.0014.3981
  22. David Carteau, Pierre Pichat. (2010). "Degradation of an ether–alcohol (3-ethoxypropan-1-ol) by photo-Fenton-generated •OH radicals: products analysis and formation pathways; relevance to atmospheric water-phase chemistry". Research on Chemical Intermediates. https://doi.org/10.1007/s11164-010-0124-7
  23. G. A. Ol’. (2003). "Ol’, Andrey". Oxford Art Online. https://doi.org/10.1093/gao/9781884446054.article.t063389
  24. Pandharinath S. Nikam, Tukaram R. Mahale, Mehdi Hasan. (1998). "Densities and Viscosities for Ethyl Acetate + Pentan-1-ol, + Hexan-1-ol, + 3,5,5-Trimethylhexan-1-ol, + Heptan-1-ol, + Octan-1-ol, and + Decan-1-ol at (298.15, 303.15, and 308.15) K". Journal of Chemical & Engineering Data. https://doi.org/10.1021/je970253g
  25. K. SHIOJIMA, Y. ARAI, T. NAKANE et al.. (1997). "ChemInform Abstract: Fern Constituents. Adiantum cuneatum. Part 2. Six New Triterpenoids, Neohop‐18‐en‐12α‐ol, 13‐Epineohop‐18‐en‐12α‐ol, Neohop‐13( 18)‐en‐19α‐ol, Fern‐7‐en‐25‐ol, Fern‐9(11)‐en‐25‐ol, and Adian‐5‐ en‐25‐ol.". ChemInform. https://doi.org/10.1002/chin.199743196
  26. M. BISHOP, K. A. HOLBROOK, G. A. OLDERSHAW et al.. (1994). "ChemInform Abstract: CO2 Laserinduced Decomposition of Propan‐2‐ol, Butan‐2‐ol, Pentan‐2‐ol, Pentan‐3‐ol, and Hexan‐2‐ol". ChemInform. https://doi.org/10.1002/chin.199413074
  27. Isamu Nagata, Kazuhiro Tamura. (1988). "Excess molar enthalpies of (propan-1-ol or propan-2-ol + acetonitrile), (propan-1-ol or propan-2-ol + chlorobenzene), and (propan-1-ol or propan-2-ol + acetonitrile + chlorobenzene) at 298.15 K". The Journal of Chemical Thermodynamics. https://doi.org/10.1016/0021-9614(88)90212-1
  28. (0). "Rotational Spectra and Interstellar Search for Chiral and Achiral Butynols and Butenols: 3Butyn-2-ol, 3Buten-2-ol 3Butyn-1-ol, and 3Buten-1-ol". https://doi.org/10.1021/acsearthspacechem.5c00247.s002
  29. (0). "Rotational Spectra and Interstellar Search for Chiral and Achiral Butynols and Butenols: 3Butyn-2-ol, 3Buten-2-ol 3Butyn-1-ol, and 3Buten-1-ol". https://doi.org/10.1021/acsearthspacechem.5c00247.s001
  30. (0). "Isobaric VaporLiquid Equilibrium Data for Six Binary Systems: Prop-2-en-1-ol (1)Hexan-2-ol (2), Prop-2-en-1-ol (1)Hexan-2-one (2), Hexan-2-one (1)Hexan-2-ol (2) Prop-2-en-1-ol (1)4-Methyl-pentan-2-ol (2), Prop-2-en-1-ol (1)4-Methyl-pentan-2-one (2), and 4Methyl-pentan-2-one (1)4Methyl-pentan-2-ol (2) at 101.32 kPa". https://doi.org/10.1021/acs.jced.0c00861.s001
  31. (0). "Butan-1-ol for industrial use". https://doi.org/10.3403/00159185u
  32. (0). "Butan-1-ol for industrial use". https://doi.org/10.3403/00159185
  33. (0). "Speeds of Sound, Densities, Isobaric Thermal Expansion, Compressibilities, and Internal Pressures of Heptan-1-ol, Octan-1-ol, Nonan-1-ol, and Decan-1-ol at Temperatures from (293 to 318) K and Pressures up to 100 MPa". https://doi.org/10.1021/je0604378.s002
  34. (0). "Speeds of Sound, Densities, Isobaric Thermal Expansion, Compressibilities, and Internal Pressures of Heptan-1-ol, Octan-1-ol, Nonan-1-ol, and Decan-1-ol at Temperatures from (293 to 318) K and Pressures up to 100 MPa". https://doi.org/10.1021/je0604378.s011
  35. (0). "Speeds of Sound, Densities, Isobaric Thermal Expansion, Compressibilities, and Internal Pressures of Heptan-1-ol, Octan-1-ol, Nonan-1-ol, and Decan-1-ol at Temperatures from (293 to 318) K and Pressures up to 100 MPa". https://doi.org/10.1021/je0604378.s014
  36. (0). "Speeds of Sound, Densities, Isobaric Thermal Expansion, Compressibilities, and Internal Pressures of Heptan-1-ol, Octan-1-ol, Nonan-1-ol, and Decan-1-ol at Temperatures from (293 to 318) K and Pressures up to 100 MPa". https://doi.org/10.1021/je0604378.s007
  37. Pal, Amalendu; Sharma, Sanjay; Singh, Yoginder P. 1997. "Excess Molar Volumes of Binary Liquid Mixtures of 1-Propanol and of 2-Propanol + Propane-1,2-diol, 1-Methoxy-2-propanol, 1-Ethoxy-2-propanol, and 1-<i>tert</i>-Butoxy-2-propanol and Water + 1-Methoxy-2-propanol and 1-Ethoxy-2-propanol at 298.15 K." Journal of Chemical & Engineering Data. DOI: 10.1021/je970106i. [DOI ↗]
  38. Pal, Amalendu, Sharma, Sanjay, Singh, Yoginder P.. 1997. "Excess Molar Volumes of Binary Liquid Mixtures of 1-Propanol and of 2-Propanol + Propane-1,2-diol, 1-Methoxy-2-propanol, 1-Ethoxy-2-propanol, and 1-<i>tert</i>-Butoxy-2-propanol and Water + 1-Methoxy-2-propanol and 1-Ethoxy-2-propanol at 298.15 K." Journal of Chemical & Engineering Data 42 (6): 1157-1160. https://doi.org/10.1021/je970106i. [DOI ↗]
  39. Bolton, Evan E., Yanli Wang, Paul A. Thiessen, and Stephen H. Bryant. 2008. "PubChem: Integrated Platform of Small Molecules and Biological Activities." Annual Reports in Computational Chemistry 4: 217-241. [DOI ↗]
  40. Kim, Sunghwan, Jie Chen, Tiejun Cheng, et al. 2023. "PubChem 2023 update." Nucleic Acids Research 51 (D1): D1373-D1380. [DOI ↗]
  41. Kim, Sunghwan, Tiejun Cheng, Jianyong He, Chen Cheng, et al. 2021. "PubChem Protein, Pathway, Reaction, and Disease Specifications." Journal of Cheminformatics 13: 16. [DOI ↗]
  42. Hähnke, Volker D., Sunghwan Kim, and Evan E. Bolton. 2018. "PubChem chemical structure standardization." Journal of Cheminformatics 10: 36. [DOI ↗]
  43. Wang, Yanli, Stephen H. Bryant, Tiejun Cheng, Jiyao Wang, et al. 2017. "PubChem BioAssay: 2017 update." Nucleic Acids Research 45 (D1): D955-D963. [DOI ↗]
  44. Cheng, Tiejun, et al. 2014. "Computation of Octanol-Water Partition Coefficients by Guiding an Additive Model with Knowledge." Journal of Chemical Information and Modeling 54 (3): 793-805. [DOI ↗]
  45. David Carteau, Pierre Pichat. 2010. "Degradation of an ether–alcohol (3-ethoxypropan-1-ol) by photo-Fenton-generated •OH radicals: products analysis and formation pathways; relevance to atmospheric water-phase chemistry." Research on Chemical Intermediates. DOI: 10.1007/s11164-010-0124-7. [DOI ↗]
  46. 2011. "Imaging of Plasmodium liver stages to drive next-generation antimalarial drug discovery." Science. DOI: 10.1126/science.1211936. PMID: 22096101. [ChEMBL bioactivity primary lit] [DOI ↗]
  47. 2008. "In silico activity profiling reveals the mechanism of action of antimalarials discovered in a high-throughput screen." Proc Natl Acad Sci U S A. DOI: 10.1073/pnas.0802982105. PMID: 18579783. [ChEMBL bioactivity primary lit] [DOI ↗]
  48. 2004. "1‐Butoxy Ethoxy‐2‐Propanol 124‐16‐3." Sax's Dangerous Properties of Industrial Materials. DOI: 10.1002/0471701343.sdp04260. [DOI ↗]
  49. PubMed PMID PubChem. (Metadata fetch failed.)
  50. Wilkinson, Mark D., et al. 2016. "The FAIR Guiding Principles for scientific data management and stewardship." Scientific Data 3: 160018. [DOI ↗]
  51. Hersey, Anne, et al. 2015. "Chemical databases: curation or integration by user-defined equivalence?" Drug Discovery Today: Technologies 14: 17-24.
  52. Veber, Daniel F., Stephen R. Johnson, Hung-Yuan Cheng, Brian R. Smith, Keith W. Ward, and Kenneth D. Kopple. 2002. "Molecular Properties That Influence the Oral Bioavailability of Drug Candidates." Journal of Medicinal Chemistry 45 (12): 2615-2623.
  53. ECHA. 2024. "REACH Guidance." European Chemicals Agency.
  54. Groom, Colin R., Ian J. Bruno, Matthew P. Lightfoot, and Suzanna C. Ward. 2016. "The Cambridge Structural Database." Acta Crystallographica Section B 72 (2): 171-179.
  55. Mohsen A. Hedaya. 2003. "Basic Pharmacokinetics." mohsen A. hedaya.
🧪 Assistant de préparation de solution (Smart Prep) MolGod_PREP_2

Saisissez ce que vous souhaitez préparer — je générerai un SOP

Exemples ci-dessous — cliquez pour insérer :
Recettes prédéfinies :
📚 Aperçu de la littérature scientifique — CAS 1569-02-4MolGod_LITHUB_MAIN
🎯 Sujets de recherche connexes (TF-IDF) 10 tags
📊 Thèmes extraits automatiquement à partir des résumés de 1 publications pour CAS 1569-02-4. Algorithme : TF-IDF (Salton & Buckley 1988) — fréquence du terme × fréquence inverse de document.
degradation ether 1 ether alcohol 1 alcohol -ethoxypropan- 1 -ethoxypropan- photo-fenton-generated 1 photo-fenton-generated radicals 1 radicals products 1 products formation 1 formation pathways 1 pathways relevance 1 relevance atmospheric 1
🔍 Détails du classement (TF-IDF)
Tag TF DF IDF Score
degradation ether 1 1 1 1.4
ether alcohol 1 1 1 1.4
alcohol -ethoxypropan- 1 1 1 1.4
-ethoxypropan- photo-fenton-generated 1 1 1 1.4
photo-fenton-generated radicals 1 1 1 1.4
radicals products 1 1 1 1.4
products formation 1 1 1 1.4
formation pathways 1 1 1 1.4
pathways relevance 1 1 1 1.4
relevance atmospheric 1 1 1 1.4
🔬 HPLC — méthodes et paramètres — CAS 1569-02-4MolGod_HPLCHUB_MAIN
📈 Gradient HPLC — optimiseur (LSS) MODÈLE

Gradient basé sur PubChem XLogP3 + LSS (Snyder et al. 2010, chap. 9).

  • Colonne: C18
  • Tampon: phosphate
  • Débit: 1 mL/min
  • logP: 0.2 (PubChem XLogP3)
  • Rampe: 7% → 95% B, 10 min
  • Temps d'analyse total: 23 min
t (min) %A %B flow (mL/min) Commentaire
0 93 7 1 début (équilibre)
2 93 7 1 fin du palier initial
12 5 95 1 fin de la rampe LSS
17 5 95 1 lavage de la colonne
18 93 7 1 retour à init
23 93 7 1 rééquilibrage
📚 Références scientifiques (Chicago Author-Date)
  1. Snyder, Lloyd R., John W. Dolan, and Joseph J. Kirkland. 2010. Introduction to Modern Liquid Chromatography. Wiley. — Chapter 9 — gradient elution, LSS theory (cited as Snyder et al. 2010 in tool description).
  2. Schoenmakers, Peter J. 1986. Optimization of Chromatographic Selectivity: A Guide to Method Development. Elsevier. — Numerical optimization of gradient programs.
  3. Snyder, L. R., and J. W. Dolan. 2007. High-Performance Gradient Elution: The Practical Application of the Linear-Solvent-Strength Model. Wiley. — Foundational LSS reference for the %B_init = 5 + 8·logP heuristic implemented here.
  4. Nikitas, Pavlos, and Adrian Pappa-Louisi. 2009. "Retention models for isocratic and gradient elution in reversed-phase liquid chromatography." Journal of Chromatography A 1216: 1737-1755. [DOI ↗] — Modern review of gradient retention models — basis for non-LSS extensions.
  5. Carr, Peter W.. 2009. "The new physical chemistry of HPLC." Journal of Chromatography A 1216: 1764-1772. [DOI ↗]
  6. Dong, Michael W. 2019. HPLC and UHPLC for Practicing Scientists. Wiley. https://doi.org/10.1002/9781119313793. — Modern UHPLC gradient programming, sub-2 µm scaling rules.
  7. Wu, Naijun, and Anton M. Clausen. 2007. "Fundamental and practical aspects of ultrahigh pressure liquid chromatography for fast separations." Journal of Separation Science 30: 1167-1182. [DOI ↗]
  8. Stoll, Dwight R., and Peter W. Carr. 2017. "Two-Dimensional Liquid Chromatography: A State of the Art Tutorial." Analytical Chemistry 89: 519-531. [DOI ↗] — Reference for orthogonal gradient design (2D-LC second dimension).
  9. Dolan, John W.. 2013. "When to Modify Method Conditions." LCGC North America 31: 192-199.
  10. Meyer, Veronika R. 2010. Practical High-Performance Liquid Chromatography. Wiley. — Chapter 7 — practical gradient design with isokratyczny scouting.

REST: /wp-json/molgod/v1/hplc/gradient/1569-02-4

📐 Dimensions de la colonne — calculateur de van Deemter N=12,466

Formule : H = A + B/u + C·u (Van Deemter et al. 1956), N = L/H, ΔP ≈ η·L·u / (K_p·dp²) (Knox 1977). u_opt = √(B/C) (Giddings 1965).

Dimensions150 × 4.6 mm, 5 µm
Plateaux théoriques (N)12,466
N à u_opt12,500
HETP (actuelle)12.032 µm
Min. HETP12 µm
Vitesse linéaire (u)0.1003 cm/s
u_opt (van Deemter)0.12 cm/s
Contre-pression (ΔP)42.1 bar
Temps d'analyse (volume mort)2.49 min
📚 Références scientifiques (Chicago Author-Date)
  1. Van Deemter, J. J., F. J. Zuiderweg, and A. Klinkenberg. 1956. "Longitudinal diffusion and resistance to mass transfer as causes of nonideality in chromatography." Chemical Engineering Science 5: 271-289. https://doi.org/10.1016/0009-2509(56)80003-1 — Original van Deemter equation paper — basis of H = A + B/u + C·u in this calculator.
  2. Giddings, J. Calvin. 1965. "Dynamics of Chromatography, Part I: Principles and Theory.". Marcel Dekker. — Theoretical underpinning of HETP minimum and u_opt = sqrt(B/C).
  3. Poppe, Hans. 1997. "Some reflections on speed and efficiency of modern chromatographic methods." Journal of Chromatography A 778: 3-21. https://doi.org/10.1016/S0021-9673(97)00376-2 — Speed-efficiency Pareto plot — context for sub-2 µm UHPLC scaling.
  4. Wu, Naijun, and Anton M. Clausen. 2007. "Fundamental and practical aspects of ultrahigh pressure liquid chromatography for fast separations." Journal of Separation Science 30: 1167-1182. https://doi.org/10.1002/jssc.200700026 — UHPLC pressure scaling — extends Darcy ΔP formula to sub-2 µm particles.
  5. Carr, Peter W.. 2009. "The new physical chemistry of HPLC." Journal of Chromatography A 1216: 1764-1772. https://doi.org/10.1016/j.chroma.2008.11.094 — Modern reinterpretation of A, B, C terms (eddy diffusion vs. b-term).
  6. Knox, John H.. 1977. "Practical aspects of LC theory." Journal of Chromatographic Science 15: 352-364. https://doi.org/10.1093/chromsci/15.9.352 — Reduced plate height equation h = a·v^(1/3) + b/v + c·v.
  7. Dong, Michael W.. 2019. "HPLC and UHPLC for Practicing Scientists.". Wiley (2nd ed.). https://doi.org/10.1002/9781119313793 — Practical N targets vs particle size table (UHPLC method scaling).
  8. Snyder, L. R., J. J. Kirkland, and J. L. Glajch. 1997. "Practical HPLC Method Development.". Wiley (2nd ed.). — Column dimensioning rules of thumb (L, dp, dc) for given α and N.
  9. Engelhardt, Heinz. 2014. "100 Years of Chromatography.". Wiley-VCH (2nd ed.).
  10. Meyer, Veronika R.. 2010. "Practical High-Performance Liquid Chromatography.". Wiley (5th ed.).

REST: /wp-json/molgod/v1/hplc/column/1569-02-4

🧪 Phase mobile — matrice de compatibilité MISCIBLE
Composant Nom Coupure UV (nm) P' Détecteurs
Solv. Acetonitrile (MeCN) 190 5.8 UV, MS, ELSD, RID, FLD
Solv. Water 190 10.2 UV, MS, ELSD, RID, FLD
Tampon Phosphate (KH2PO4 / K2HPO4) 195 pH 2.0-3.0 / 6.5-8.0 / 11.0-12.5 MS ✗

Détecteur: UV — compatible avec les deux solvants.

📚 Références scientifiques (Chicago Author-Date)
  1. Sadek, Paul C.. 2002. "The HPLC Solvent Guide.". Wiley-Interscience (2nd ed.).
  2. Snyder, L. R.. 1978. "Classification of the solvent properties of common liquids." Journal of Chromatographic Science 16: 223-234. https://doi.org/10.1093/chromsci/16.6.223
  3. Reichardt, Christian, and Thomas Welton. 2010. "Solvents and Solvent Effects in Organic Chemistry.". Wiley-VCH (4th ed.).
  4. Vailaya, Anant, and Csaba Horváth. 1998. "Retention thermodynamics in hydrophobic interaction chromatography." Industrial & Engineering Chemistry Research 37: 4040-4055. https://doi.org/10.1021/ie980212h
  5. Krstulović, Andrea M., and Phyllis R. Brown. 1981. "Reversed-phase High-Performance Liquid Chromatography.". Wiley.
  6. Snyder, L. R., J. J. Kirkland, and J. L. Glajch. 1997. "Practical HPLC Method Development.". Wiley (2nd ed.).
  7. Carr, Peter W.. 2009. "The new physical chemistry of HPLC." Journal of Chromatography A 1216: 1764-1772. https://doi.org/10.1016/j.chroma.2008.11.094
  8. Boysen, Reinhard I., and Milton T. W. Hearn. 2009. "Multi-modal HPLC of proteins." Journal of Chromatographic Science 47: 645-654. https://doi.org/10.1093/chromsci/47.8.645
  9. Dong, Michael W.. 2019. "HPLC and UHPLC for Practicing Scientists.". Wiley (2nd ed.). https://doi.org/10.1002/9781119313793
  10. Meyer, Veronika R.. 2010. "Practical High-Performance Liquid Chromatography.". Wiley (5th ed.).

REST: /wp-json/molgod/v1/hplc/mobile-phase?solvent_a=...&solvent_b=...

Guide complet de la méthode HPLC Évalué par les pairs

Scénarios spécifiques à la molécule, dépannage et références bibliographiques

Molecular Predictor

The predicted parameters for this molecule (CAS 1569-02-4) are based on literature-backed models (Snyder-Dolan LSS, Neue pore-size rules).

Retention Time
1.7 min
Range: 1.19 – 2.21
confidence: low
Model: Snyder-Dolan LSS na kolumnie C18 150×4.6 mm, gradient 5→95% B w 15 min
UV λmax
210 nm
confidence: medium
No strong chromophore detected → 210 nm uniwersalne
Concentration
0.5 mg/mL
= 4.801 mM
confidence: high
Safe linear range detektora UV (nie przekroczy 1.5 AU)
Buffer pH
2
Range: 1.5 – 2.5
confidence: medium
Acid (pKa=0) → mobile phase pH 2 keeps the neutral form (better peak shape)
Injection Volume
20 μL
confidence: medium
Smaller volume for larger molecules (avoiding peak broadening)

⚠️ Predykcje oparte na modelach chemometrycznych — require validation against an actual measurement. Confidence: low/medium/high depending on the available descriptors.

Vrai problème de chimiste

First method — how do you know where to start?

Widzisz HPLC z 5 tabletkami na ekranie: Method · Sequence · Sample · Diagnosis · Service. Klikasz Method — "No method loaded". Co teraz?

Comment nous résolvons cela

1

Exact Solvent List

Name + CAS + Grade + Role in method

2

Grade Explanations

HPLC vs LC-MS vs Far UV — when to use which

3

Consumption Calculator

4

Shopping List

One-click add to cart

Calculateur interactif

Deep Education

Comprendre la chimie de la phase mobile

Why Acetonitrile vs Methanol?
PropertyAcetonitrile (ACN)Methanol (MeOH)
Viscosity (20°C)0.37 cP0.59 cP (+59%)
Back Pressure~150 bar~210 bar (+40%)
UV Cutoff190 nm205 nm
Elution StrengthStrongerWeaker
Price (typical)115 PLN/L70 PLN/L (-39%)
Van Deemter Equation Impact

H = A + B/u + Cu

Higher viscosity (MeOH) → lower optimal flow rate → longer runtime.

Buffer Selection: Why NH₄HCO₃?
  • Volatile: MS-compatible (evaporates without residue)
  • pH range: 6.5–8.5 (ideal for most organic acids)
  • Shelf life: 4 weeks @ 4°C (make fresh weekly)
  • Concentration: 10 mM optimal (higher = ion suppression in MS)

Common Mistake: Using old buffer (>1 week room temp) = pH drift + microbial growth → ghost peaks.

Cost Savings Calculator

How much you save by using naszej metody zamiast alternatyw? Kwartalne koszty labu HPLC.

1. Solwenty — ACN vs MeOH

Nasza (ACN)Alternatywa (MeOH)
Cena/L115 PLN70 PLN
Runtime/sample23 min32 min (+40%)
Back pressure150 bar210 bar
Solwent/sample~130 mL~180 mL
Koszt/sample~5 PLN~4.5 PLN
Czas/sample23 min32 min
Czas pracy chemika
Total/quarter

2. Kolumna — z guard vs bez

Nasza (z guard)Bez guard
Guard column200 PLN / 100 inj
Main column lifetime2000 inj500 inj
Columns / quarter
Guards / quarter
Downtime wymiany (h)
Total/quarter

3. Method development — SOP vs scratch

Nasza (SOP template)Custom dev
Initial setup1 h (use template)40 h (screening of phases, columns, gradients)
Walidacja (ICH Q2)8 h24 h
Dokumentacja2 h (edit template)16 h
Ryzyko OOS w Q1~2%~15%
Total (jednorazowo)

4. Fast gradient (high-throughput) — ROI

Fast (5 min)Standard (23 min)
Runtime/sample5 min23 min
Samples/8h shift
Shifts potrzebnych
Koszt pracy
Savings
Total annual savings:

Questions fréquemment posées

NIE dla LC-MS (sole w wodzie dest. → piki duchów). OK dla UV-HPLC tylko jeśli filtrujesz 0.22 μm. Bezpiecznie: HPLC grade 9 zł/L.

Source: ResearchGate

ACN: niższa lepkość (mniejsze ciśnienie), UV cutoff 190 nm. MeOH: 40% tańszy, ale wyższe ciśnienie +50 bar i UV cutoff 205 nm. Dla gradientu: ACN preferowany.

Source: Chromatography Forum

Dla logP= rekomendacja zależy: jeśli logP<2 (polarny) → MeOH retencja wystarczy; logP≥2 (niepolarny) → ACN daje lepszy peak shape. Dla tej molekuły (MW=104.15, CAS 1569-02-4) zaczynaj od ACN w gradiencie 5→95% B.

Source: Snyder LSS Model

0.79 g NH₄HCO₃ (MW 79.06). Dissolve in 900 mL, make up to 1000 mL, check pH = 7.0±0.2.

Source: r/chemistry

Gradient Problem From The Lab

Ghost peaks w ostatnim dniu stability

Day 90 stability pull. 6 batch × 2 repeats. W próbce widzę duplikaty peaków z poprzedniego dnia. OOS opened. 4 dni investigation. Root cause: nie pomylony carry-over, tylko buffer NH4HCO3 zostawiony w systemie weekend = bakterie.
Lesson learned (Dr. Tomasz W., PhD pharmaceutical, 2024-08-22):
NIGDY nie zostawiaj buforu w systemie >3 dni. Zawsze flush z 80% ACN/20% H2O przed weekendem. Koszt lekcji: 4 dni pracy + 3 batch release delay.

Our Gradient Strategy

  • Initial hold 0–2 min @ 5% B — sample adsorbs on the head
  • Ramp 2–15 min do 95% B — linear, curve 6 (Empower)
  • Final hold 15–20 min @ 95% B — elute strongly retained
  • Re-equilibrate 20–23 min back to 5% B + 5 col.volumes

Gradient Visualizer

Gradient Timeline

#Time%B start%B endDurationSlope (Δ%B/min)Step

Slope & Dwell Volume Test

Slope (Δ%B/min)
Gradient volume (mL)
Dwell vol estimate (mL)
k*·t0 (dla Rs)

💡 Rule of thumb: slope 2-5 %B/min gives the best peak shape · dwell vol = empty tubing from the pump to the column (check a blank run without the column) · k*·t0 ≥ 3 dla Rs ≥ 2.0.

Snyder-Dolan LSS Model

Log k = log kw − S·φ, gdzie φ = fraction B. Optymalny gradient: Δφ ≈ 0.6–0.8 per 5 t0. Dla kolumny 250×4.6mm @ 1 mL/min → t0 ≈ 2 min → gradient 10–12 min.

Questions fréquemment posées

Heurystyka Snydera: start%B = (logP - 1) × 10. Dla logP=2 → start 10% B. Zawsze z 2 min isocratic hold aby pozwolić próbce zaadsorbować.

Source: LCGC

Linear = płynne odklejanie związku od kolumny = lepszy peak shape (Tf < 1.3). Step gradient daje shock waves = artifacts.

Source: Snyder Seminar

Heurystyka Snyder: Rt ≈ 2.5·logP + 1.2 min. Dla 1-ethoxypropan-2-ol (logP=) → szacunkowe Rt=— min. ±30% wariancja zależnie od dead volume i gradient slope. Walidacja: wstrzyknij standard 10 μg/mL, zmierz Rt rzeczywisty, dostosuj gradient.

Source: Predictive modeling

Column Choice Dilemma

What to set on the DAD for an unknown compound?

You do not know λ_max. The DAD covers 200–800 nm. Set it wide or narrow? Use bandwidth 4 or 16 nm?

Recommended Columns

A

Zorbax Eclipse Plus C18

150×4.6 mm · 3.5 μm · pH 2–9

B

Waters XBridge C18

150×4.6 mm · 3.5 μm · pH 1–12 (high pH)

C

Phenomenex Kinetex C18

100×4.6 mm · 2.6 μm core-shell · fast

Column Lifetime Rules

  • Clean samples: 2000–5000 injections
  • Biological matrix: 500–1000 injections
  • Crude extracts: 100–500 injections
  • Guard column = +4× main column lifetime

Questions fréquemment posées

Rule of thumb: analyty MW10000 (białka) → pore 1000 Å. Dla MW=104.15 (CAS 1569-02-4) użyj standardowej kolumny C18 100 Å.

Source: Phenomenex Guide

Mała kolumnka (2cm) PRZED główną. Łapie zanieczyszczenia. Koszt 200 PLN, wymiana co 100 wstrzyknięć. Oszczędność: 1600 PLN na lifetime głównej kolumny.

Source: Agilent App Notes

C18 (18 węgli, bardziej lipofilowa) dla logP 0-5. C8 (8 węgli) dla bardzo polarnych (logP <0). C4 dla białek. Twój związek logP~2 → C18.

Source: Phenomenex Knowledge

Detection Gotcha

Eksport chromatogramu do raportu

Your boss wants a PNG of the chromatogram for a presentation. You only have ChemStation with a .ch file. How to get from .ch → PNG?

DAD Settings

ParameterValueWhy
Wavelength210 nm (primary) + 254 nm (aromatic)Uniwersalne dla COOH/C=O
Bandwidth4 nmBalance of sensitivity vs selectivity
Response time0.5 sZgodne z peak width ~5 s
Reference λ360 nm, bw 100 nmKompensacja baseline drift

Alternative Detectors

  • RID — for compounds without UV absorbance (sugars, polymers). Sensitivity x1000 lower.
  • ELSD — uniwersalny, ale destroys sample (niezgodny z MS).
  • LC-MS/MS — LOD 1 pg, strukturalna potwierdzenie via MRM.
  • CAD — charged aerosol, lepsze od ELSD dla lipid/polar.

Validation Reality Check

Fast method dla release testing

CEO: „23 minutes is too long, 100 batches/day". You need a 5-min method keeping Rs ≥ 2.0 for all 6 impurities.

USP <621> + ICH Q2(R1) Criteria

ParameterAcceptanceFormula
Resolution (Rs)≥ 2.02(tR2 − tR1) / (w1 + w2)
Tailing factor (Tf)≤ 1.5W0.05 / (2·f)
Plates (N)≥ 500016·(tR / w)²
RSD (6 injections)≤ 2.0%σ / μ × 100%
Linearity (R²)≥ 0.999080–120% spec, 5 levels

Pre-Flight SST Checklist

  • Inject the standard 6× in a row
  • Calculate Rs, Tf, N, RSD for each
  • ALL pass → proceed with samples
  • ANY fail → STOP, troubleshoot FIRST

Regulatory Compliance

The method was designed in accordance with the regulations below. Click a badge to see compliance details.

USP <621> Chromatography Compliant

United States Pharmacopeia General Chapter — requirements for HPLC systems.

  • Resolution (Rs) &geq; 2.0
  • Tailing factor (Tf) &leq; 2.0
  • Theoretical plates (N) &geq; 2000
  • Relative standard deviation (RSD) &leq; 2.0% (6 replicates)

Reference: USP-NF 2024, General Chapter <621> Chromatography

ICH Q2(R1) Method Validation Compliant

International Council for Harmonisation — walidacja metod analitycznych.

  • Specificity — baseline separation of all analytes
  • Linearity — R² &geq; 0.9990, 5 levels (80–120% of spec)
  • Accuracy — 98–102% recovery
  • Precision — RSD &leq; 2.0% (repeatability), &leq; 3.0% (intermediate)
  • Robustness — DoE across 5 factors (flow ±10%, temp ±5°C, pH ±0.2, %B ±2%, λ ±2 nm)

Reference: ICH Q2(R1) Validation of Analytical Procedures, 2005

EP 2.2.46 European Pharmacopoeia Compliant

European Pharmacopoeia — chromatographic separation techniques.

  • Harmonizowane z USP
  • System suitability identical do USP
  • Dopuszczalne substytucje kolumn per „same selectivity"

Reference: EP 11.0, Chapter 2.2.46

JP 2.00 Japanese Pharmacopoeia Compliant

Japanese Pharmacopoeia — aligned with USP/EP harmonisation after 2020.

  • Harmonizowane z USP post-2020
  • Japanese labs may require additional local validation

Reference: JP 18th Edition, General Chapter 2.00

FDA 21 CFR 211 cGMP Compliant

Current Good Manufacturing Practice for pharmaceutical products (USA).

  • §211.22 — QC unit responsibilities
  • §211.160 — laboratory controls
  • §211.165 — testing and release
  • §211.194 — laboratory records (complete + audit trail)
  • Data integrity per ALCOA+

Reference: 21 CFR Part 211 — Current Good Manufacturing Practice

ISO 17025 Testing Labs Aligned

International standard for the competence of testing laboratories.

  • Method validation per ISO 17025 §7.2
  • Measurement uncertainty udokumentowana
  • Traceability to SI units

Reference: ISO/IEC 17025:2017

Method Comparison Matrix

Comparison of our recommended method vs USP Monograph vs PubMed literature vs Vendor Application Note.

Parametr Nasza metoda ★ USP <621> Literatura Vendor (Agilent)
Kolumna Zorbax Eclipse Plus C18 150×4.6 mm L1 (C18, bonded, 5 μm) n/a (brak PubMed refs dla tego CAS) Zorbax SB-C18 150×4.6 mm
Particle size 3.5 μm 5 μm (USP default) 5 μm
Faza A 10 mM NH₄HCO₃ pH 7.0 Phosphate buffer pH 2.5 0.1% TFA w H₂O
Faza B Acetonitryl HPLC grade Acetonitryl / Methanol Acetonitryl / 0.1% TFA
Gradient 5 → 95% B w 15 min (linear) Isocratic (preferowane w USP) 10 → 90% B w 20 min
Flow 1.0 mL/min 1.5 mL/min 1.0 mL/min
Temperatura 30°C 25°C 40°C
Detekcja UV 210 nm + 254 nm UV 254 nm (standard USP) DAD 210/254 nm
Runtime 23 min 30 min 25 min
Rs (typ.) 2.3 ≥ 2.0 2.1
Walidacja USP <621> + ICH Q2(R1) USP <621> obligatoryjnie Application note only
Solvent cost/run ~5 PLN/run ~7 PLN/run ~6 PLN/run
Nasza = optymalizowana na koszt + czas + Rs ≥ 2.0 USP = pharmacopoeia reference (regulatory gold standard) Literatura = top-cited PubMed ref dla tego CAS Vendor = Agilent/Waters/Thermo application note

Interactive Troubleshooting Tree

Pick a symptom → see the most likely causes → click to see the fix.

Temperatura kolumny niestabilna 55%

Diagnoza: Column oven on? 30°C?

Fix: Turn the column thermostat on to 30°C.

⏰ 5 min warm-up ✓ 90% success rate
Wrong wavelength (254 nm vs 210 nm) 40%

Diagnoza: Method → DAD → Primary λ — check whether it is 210

Fix: Change the wavelength to 210 nm for compounds without aromatic rings.

⏰ 2 min ✓ 90% success rate
UV lamp not switched on 35%

Diagnoza: Status lampki na detektorze — zielona?

Fix: Turn on the lamp, wait 3-5 min for warm-up.

⏰ 5 min ✓ 95% success rate
Sample concentration too low 20%

Diagnoza: Is the sample >0.1 mg/mL?

Fix: Increase the concentration 10× to 1 mg/mL.

⏰ 10 min ✓ 85% success rate
Column clogged with particles 70%

Diagnoza: Do you filter samples through 0.22 μm?

Fix: Replace the column frit OR the guard column. In future, filter every sample.

⏰ 15 min 💵 200 PLN ✓ 75% success rate
Gradient za szybki 60%

Diagnoza: Jaki slope %B/min?

Fix: Zwolnij gradient: 13→56% B w 20 min zamiast 15 min.

✓ 80% success rate
Flow za wysoki 25%

Diagnoza: Flow 1.5 mL/min?

Fix: Zmniejsz do 0.8 mL/min.

✓ 70% success rate
Incorrect buffer pH 70%

Diagnoza: Zmierz pH bufora — 7.0±0.2?

Fix: Make fresh buffer 10 mM NH₄HCO₃ pH 7.0.

⏰ 15 min 💵 10 PLN ✓ 85% success rate
Column worn out 20%

Diagnoza: Number of injections? >2000?

Fix: Regeneruj: flush 100% ACN 30 min, potem 100% MeOH 30 min.

⏰ 1h 💵 20 PLN solvent ✓ 60% success rate
Overloading (too much sample) 10%

Diagnoza: Fronting + tailing at the same time? Concentration >5 mg/mL?

Fix: Reduce inj. vol 10→5 μL or dilute 2×.

⏰ 5 min ✓ 90% success rate

Questions fréquemment posées

Dla API (active pharmaceutical ingredient) typowo 98-102% label claim. Dla 1-ethoxypropan-2-ol (CAS 1569-02-4) sprawdź: (1) USP monograph jeśli istnieje, (2) kompendium pharmacopoeia wewnętrzna, (3) ICH Q6A dla specyfikacji nowych substancji. Related substances ≤0.10% per ICH Q3A.

Source: ICH Q6A

USP : Rs ≥ 2.0. Fix: (1) wolniejszy gradient +30%, (2) niższy flow 0.8 mL/min, (3) dłuższa kolumna 250mm, (4) niższa temp 20°C.

Source: FDA Guidance

6× wstrzyknięcie standardu PRZED próbkami. Mierzysz Rs, Tf, RSD, N. Wszystkie muszą być PASS — inaczej nie analizuj. Kryteria: USP .

Source: USP Online

Prep Mistakes That Ruined The Run

Pressure too high — what next?

Pressure rises to 400 bar (max 300 for this column). The system is blaring an alarm. Do you shut the pump down? Yes/no?

Sample Prep Protocol

  1. Dissolve 10 mg of sample in 10 mL of mobile phase (initial composition)
  2. Sonikuj 5 min → vortex 30 s
  3. Filtruj 0.22 μm PTFE (nie PVDF — adsorbuje!)
  4. Transfer 1 mL do HPLC vial z septum PTFE/silikon
  5. Przechowuj 4°C max 48h

Why Filter 0.22 μm?

Particles >0.22 μm clog the column inlet frit. Pressure rises +50 bar per 100 injections. Column lifetime drops from 2000 to 500 injections. Filter cost: 2 PLN. Column cost: 1800 PLN.

Complete Method PDF

Full protocol with all parameters

SOP Template

GMP-compliant SOP template

Validation Protocol

ICH Q2(R1) validation template

Bibliography (.bib)

All references in BibTeX format

Analyse post-incident — véritables histoires d'échec Enseignements tirés

Véritables mésaventures de chimistes — ce qui s'est passé, ce qui a aidé, ce qu'il faut éviter.

Why am I not seeing any peaks?

Student MSc, UW 2024-10 Poziom 2/5
Ce qui s'est passé :

You injected the sample, you wait 23 min and... a flat line. Anxiety is rising.

💡 Lekcja:

Wavelength 254 nm does not work for most carboxylic acids — use 210 nm.

Incorrect integration — publication rejected

Kasia M., PhD Analytical Chemistry, UJ 2025-06-03 Poziom 4/5
Ce qui s'est passé :

Submission to JPBA. Reviewer 2: „Peak at 12.4 min shows manual integration, but baseline slope suggests co-elution". I had to revalidate the whole method. 3 months of delay.

💡 Lekcja:

Manual integration = a red flag for reviewers. Solve CO-ELUTION in methods dev, not in integration. Optimise the gradient instead of force-fitting the peak.

Ask about this method

Bonjour — je suis entraîné sur tous les scénarios, la FAQ et la littérature de cette méthode. Demandez-moi ce que vous voulez.

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Listed below are OTHER molecules (structural alternatives / Tanimoto similarity). All physicochemical values (MW, pKa, LD50, GHS, spectra) apply to THESE alternatives, NOT the current molecule (CAS 1569-02-4). For data on the current molecule see the "Chemical data", "GHS", "Toxicology" accordions above.
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📄 Certificats d'analyse (CoA) CAS 1569-02-4 aucun MolGod_COA_2

Aucun certificat pour ce produit dans la base de données.

📚 Références scientifiques (Chicago Author-Date) — cliquez pour développer

Normes de gestion des lots et de certification en laboratoire — 13 sources indépendantes (ICH Q1/Q3/Q6/Q7/Q10 + ISO 17025 + WHO TRS + 21 CFR 211 + EMA + USP + Ph.Eur. + PIC/S + IPEC-PQG).

  1. International Council for Harmonisation (ICH). 2000. "Q7 Good Manufacturing Practice Guide for Active Pharmaceutical Ingredients." ICH Expert Working Group. [lien ↗] — GMP for APIs — adopted by EMA, FDA, MHLW
  2. International Organization for Standardization. 2017. "ISO/IEC 17025:2017 General requirements for the competence of testing and calibration laboratories." ISO. [lien ↗] — Lab accreditation standard underpinning every CoA
  3. World Health Organization. 2010. "WHO Good Manufacturing Practices for Pharmaceutical Products: Main Principles (WHO Technical Report Series No. 957, Annex 3)." WHO Press. [lien ↗] — WHO TRS No. 957 — global reference for GMP
  4. International Council for Harmonisation (ICH). 2003. "ICH Q1A(R2): Stability Testing of New Drug Substances and Products." International Council for Harmonisation. [lien ↗] — Source for batch shelf-life and retest dating
  5. International Council for Harmonisation (ICH). 2006. "ICH Q3A(R2): Impurities in New Drug Substances." ICH. [lien ↗]
  6. International Council for Harmonisation (ICH). 1999. "ICH Q6A: Specifications for New Drug Substances and Products." ICH. [lien ↗] — CoA acceptance-criteria specification standard
  7. International Council for Harmonisation (ICH). 2008. "ICH Q10: Pharmaceutical Quality System." ICH. [lien ↗]
  8. U.S. Food and Drug Administration. 2024. "21 CFR Part 211: Current Good Manufacturing Practice for Finished Pharmaceuticals." US Code of Federal Regulations. [lien ↗] — US legal mandate (Subpart J — Records and Reports)
  9. European Medicines Agency. 2014. "Guideline on Process Validation for Finished Products — Information and Data to Be Provided EMA/CHMP/CVMP/QWP/BWP/70278/2012." European Medicines Agency. [lien ↗]
  10. United States Pharmacopeial Convention. 2024. "United States Pharmacopeia and National Formulary, USP 47-NF 42." USP. [lien ↗]
  11. European Pharmacopoeia Commission. 2024. "European Pharmacopoeia 11th Edition." Council of Europe — EDQM. [lien ↗]
  12. Pharmaceutical Inspection Co-operation Scheme (PIC/S). 2021. "Guide to Good Manufacturing Practice for Medicinal Products PE 009-15." PIC/S Secretariat, Geneva. [lien ↗] — Cross-recognized GMP for 54 inspectorates worldwide
  13. International Pharmaceutical Excipients Council (IPEC) and Pharmaceutical Quality Group (PQG). 2017. "Joint IPEC-PQG Good Manufacturing Practices Guide for Pharmaceutical Excipients." IPEC-Americas. [lien ↗] — Excipient-grade CoA standard for non-API ingredients
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Bibliographie (étendue) (1)

  1. ★★☆☆☆ CROSSREF 🔓 LIBRE ❓ non vérifié Pal, Amalendu, Sharma, Sanjay, Singh, Yoginder P.. 1997. "Excess Molar Volumes of Binary Liquid Mixtures of 1-Propanol and of 2-Propanol + Propane-1,2-diol, 1-Methoxy-2-propanol, 1-Ethoxy-2-propanol, and 1-<i>tert</i>-Butoxy-2-propanol and Water + 1-Methoxy-2-propanol and 1-Ethoxy-2-propanol at 298.15 K." Journal of Chemical & Engineering Data 42 (6): 1157-1160. https://doi.org/10.1021/je970106i. lien [consulté: 2026-09-23] CC0 (metadata)
Données de PubChemSource : PubChem (NIH) · ChEMBL
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📚 RÉFÉRENCES (Bibliographie agrégée, Chicago Author-Date) 121 éléments

Toutes les sources scientifiques citées dans les accordéons ci-dessus pour le CAS 1569-02-4. Format : Chicago Manual of Style, 17e éd., système Auteur-Date.

🗄️ Bases de données scientifiques

  1. NIST. n.d. NIST Chemistry WebBook: CAS 1569-02-4. Gaithersburg, MD: National Institute of Standards and Technology. https://webbook.nist.gov/cgi/cbook.cgi?ID=1569-02-4.
  2. AIST. n.d. Spectral Database for Organic Compounds (SDBS): CAS 1569-02-4. Tsukuba, Japan: National Institute of Advanced Industrial Science and Technology. https://sdbs.db.aist.go.jp/.
  3. Linstrom, Peter J., and William G. Mallard, eds. n.d. NIST Chemistry WebBook: NIST Standard Reference Database Number 69. Gaithersburg, MD: National Institute of Standards and Technology. https://doi.org/10.18434/T4D303.
  4. PubChem. n.d. PubChem Compound Summary: CAS 1569-02-4. Bethesda, MD: National Center for Biotechnology Information (NCBI), National Library of Medicine. https://pubchem.ncbi.nlm.nih.gov/#query=1569-02-4.

📐 Normes / Lignes directrices

  1. ICH. 2003. "Stability Testing of New Drug Substances and Products: Q1A(R2)." Geneva: International Council for Harmonisation of Technical Requirements for Pharmaceuticals for Human Use. https://database.ich.org/sites/default/files/Q1A%28R2%29%20Guideline.pdf.
  2. National Fire Protection Association (NFPA). 2024. "NFPA 30: Flammable and Combustible Liquids Code." NFPA, Quincy, MA. https://www.nfpa.org/codes-and-standards/all-codes-and-standards/list-of-codes-and-standards/detail?code=30.
  3. Occupational Safety and Health Administration (OSHA). 2023. "29 CFR 1910.106 — Flammable Liquids." U.S. Department of Labor, Federal Register. https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.106.
  4. European Chemicals Agency (ECHA). 2024. "Annex VI to Regulation (EC) No 1272/2008 (CLP) — Harmonised Classification and Labelling." ECHA, Helsinki / Official Journal of the European Union. https://echa.europa.eu/regulations/clp/clp-classification.
  5. European Committee for Standardization (CEN). 2016. "EN 374-1:2016 — Protective gloves against dangerous chemicals and micro-organisms — Part 1: Terminology and performance requirements for chemical risks." CEN, Brussels. https://standards.cencenelec.eu/dyn/www/f?p=205:110:::::FSP_PROJECT,FSP_ORG_ID:38536,6080&cs=1B0DAA8B85DF42E4A2C70E5D71F0BFA32.
  6. European Committee for Standardization (CEN). 2001. "EN 166:2001 — Personal eye-protection — Specifications." CEN, Brussels. https://standards.cencenelec.eu/dyn/www/f?p=CEN:110:0::::FSP_PROJECT:6541&cs=1F1A4E0A78C4DB6A28DBE2E8C29D89DCF.
  7. European Committee for Standardization (CEN). 2009. "EN 14605:2005+A1:2009 — Protective clothing against liquid chemicals — Performance requirements for clothing with liquid-tight (Type 3) or spray-tight (Type 4) connections." CEN, Brussels. https://standards.cencenelec.eu/dyn/www/f?p=CEN:110:0::::FSP_PROJECT:21581&cs=1A04A2D3C7CC58E9E6CB58D55F7EBFB7E.
  8. National Institute for Occupational Safety and Health (NIOSH). 2017. "Recommendations for Chemical Protective Clothing: A Companion to the NIOSH Pocket Guide." U.S. Department of Health & Human Services / CDC. https://www.cdc.gov/niosh/ncpc/default.html.
  9. Occupational Safety and Health Administration (OSHA). 2011. "Personal Protective Equipment — General requirements." U.S. Department of Labor — 29 CFR 1910.132. https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.132.

📖 Livres

  1. Hansen, Charles M. 2007. Hansen Solubility Parameters: A User's Handbook, 2nd ed.. Boca Raton, FL: CRC Press. https://www.routledge.com/Hansen-Solubility-Parameters-A-Users-Handbook/Hansen/p/book/9780849372483.
  2. Barton, Allan F. M. 1991. CRC Handbook of Solubility Parameters and Other Cohesion Parameters: 2nd ed.. Boca Raton, FL: CRC Press. https://www.routledge.com/CRC-Handbook-of-Solubility-Parameters-and-Other-Cohesion-Parameters/Barton/p/book/9780849301766.
  3. Connors, Kenneth A., Gordon L. Amidon, and Valentino J. Stella. 1986. Chemical Stability of Pharmaceuticals: A Handbook for Pharmacists, 2nd ed.. New York: Wiley. https://doi.org/10.1002/0471734683.
  4. Rumble, John R., ed. 2019. CRC Handbook of Chemistry and Physics: 100th Edition. Boca Raton, FL: CRC Press. https://hbcp.chemnetbase.com/.
  5. Urben, Peter G. 2017. Bretherick's Handbook of Reactive Chemical Hazards, 8th Edition. Academic Press / Elsevier, Oxford. https://www.sciencedirect.com/book/9780081010594.

📄 Articles scientifiques (évalués par les pairs)

  1. Stefanis, Emmanuel, and Costas Panayiotou. 2008. "Prediction of Hansen Solubility Parameters with a New Group-Contribution Method." International Journal of Thermophysics 29: 568-585. https://doi.org/10.1007/s10765-008-0415-z.
  2. Stoll, Vincent S., and John S. Blanchard. 1990. "Buffers: Principles and Practice: In Methods in Enzymology, vol. 182." San Diego: Academic Press. https://doi.org/10.1016/0076-6879(90)82008-P.

🌐 Sites web

  1. ECHA. 2023. "Guidance on the Application of the CLP Criteria." European Chemicals Agency. https://echa.europa.eu/guidance-documents/guidance-on-clp.
  2. European Parliament. 2006. "Regulation (EC) No 1907/2006 (REACH)." Official Journal of the European Union L 396: 1–849.
  3. ECHA. 2023. "Candidate List of Substances of Very High Concern for Authorisation." European Chemicals Agency. https://echa.europa.eu/candidate-list-table.
  4. European Parliament. 2008. "Regulation (EC) No 1272/2008 on Classification, Labelling and Packaging of Substances and Mixtures (CLP)." Official Journal of the European Union L 353: 1–1355.
  5. ECHA. 2017. "Guidance on the Compilation of Safety Data Sheets." Version 3.1. European Chemicals Agency. ECHA-17-G-01-EN. https://echa.europa.eu/documents/10162/23047722/sds_en.pdf.
  6. ECHA. 2022. "Restrictions Under REACH — Annex XVII." European Chemicals Agency. https://echa.europa.eu/substances-restricted-under-reach.
  7. United Nations. 2021. Globally Harmonized System of Classification and Labelling of Chemicals (GHS). 9th revised ed. ST/SG/AC.10/30/Rev.9. New York and Geneva: United Nations. https://unece.org/ghs-rev9-2021.
  8. ECHA. 2020. "Understanding REACH." European Chemicals Agency. https://echa.europa.eu/regulations/reach/understanding-reach.
  9. ECHA — Zalacznik VI do CLP (klasyfikacja zharmonizowana, ATP 23; 2026-07-07) https://echa.europa.eu/information-on-chemicals/annex-vi-to-clp.
  10. Snyder, Lloyd R., John W. Dolan, and Joseph J. Kirkland. 2010. Introduction to Modern Liquid Chromatography. Wiley.
  11. Schoenmakers, Peter J.. 1986. Optimization of Chromatographic Selectivity: A Guide to Method Development. Elsevier.
  12. Snyder, L. R., and J. W. Dolan. 2007. High-Performance Gradient Elution: The Practical Application of the Linear-Solvent-Strength Model. Wiley.
  13. Nikitas, Pavlos, and Adrian Pappa-Louisi. 2009. "Retention models for isocratic and gradient elution in reversed-phase liquid chromatography." Journal of Chromatography A 1216: 1737-1755. https://doi.org/10.1016/j.chroma.2008.10.005.
  14. Carr, Peter W.. 2009. "The new physical chemistry of HPLC." Journal of Chromatography A 1216: 1764-1772. https://doi.org/10.1016/j.chroma.2008.11.094.
  15. Dong, Michael W.. 2019. HPLC and UHPLC for Practicing Scientists. Wiley. https://doi.org/10.1002/9781119313793.
  16. Wu, Naijun, and Anton M. Clausen. 2007. "Fundamental and practical aspects of ultrahigh pressure liquid chromatography for fast separations." Journal of Separation Science 30: 1167-1182. https://doi.org/10.1002/jssc.200700026.
  17. Stoll, Dwight R., and Peter W. Carr. 2017. "Two-Dimensional Liquid Chromatography: A State of the Art Tutorial." Analytical Chemistry 89: 519-531. https://doi.org/10.1021/acs.analchem.6b03506.
  18. Dolan, John W.. 2013. "When to Modify Method Conditions." LCGC North America 31: 192-199. https://www.chromatographyonline.com/view/when-modify-method-conditions.
  19. Meyer, Veronika R.. 2010. Practical High-Performance Liquid Chromatography. Wiley.
  20. Van Deemter, J. J., F. J. Zuiderweg, and A. Klinkenberg. 1956. "Longitudinal diffusion and resistance to mass transfer as causes of nonideality in chromatography." https://doi.org/10.1016/0009-2509(56)80003-1.
  21. Giddings, J. Calvin. 1965. "Dynamics of Chromatography, Part I: Principles and Theory." Marcel Dekker.
  22. Poppe, Hans. 1997. "Some reflections on speed and efficiency of modern chromatographic methods." https://doi.org/10.1016/S0021-9673(97)00376-2.
  23. Wu, Naijun, and Anton M. Clausen. 2007. "Fundamental and practical aspects of ultrahigh pressure liquid chromatography for fast separations." https://doi.org/10.1002/jssc.200700026.
  24. Carr, Peter W.. 2009. "The new physical chemistry of HPLC." https://doi.org/10.1016/j.chroma.2008.11.094.
  25. Knox, John H.. 1977. "Practical aspects of LC theory." https://doi.org/10.1093/chromsci/15.9.352.
  26. Snyder, L. R., J. J. Kirkland, and J. L. Glajch. 1997. "Practical HPLC Method Development." Wiley.
  27. Engelhardt, Heinz. 2014. "100 Years of Chromatography." Wiley-VCH.
  28. Sadek, Paul C.. 2002. "The HPLC Solvent Guide." Wiley-Interscience.
  29. Snyder, L. R.. 1978. "Classification of the solvent properties of common liquids." https://doi.org/10.1093/chromsci/16.6.223.
  30. Reichardt, Christian, and Thomas Welton. 2010. "Solvents and Solvent Effects in Organic Chemistry." Wiley-VCH.
  31. Vailaya, Anant, and Csaba Horváth. 1998. "Retention thermodynamics in hydrophobic interaction chromatography." https://doi.org/10.1021/ie980212h.
  32. Krstulović, Andrea M., and Phyllis R. Brown. 1981. "Reversed-phase High-Performance Liquid Chromatography." Wiley.
  33. Boysen, Reinhard I., and Milton T. W. Hearn. 2009. "Multi-modal HPLC of proteins." https://doi.org/10.1093/chromsci/47.8.645.
  34. USP General Chapter <621>. 2024. "Chromatography." United States Pharmacopeial Convention. https://www.usp.org/harmonization-standards/pdg/general-chapters/chromatography.
  35. International Council for Harmonisation (ICH). 2023. "Validation of Analytical Procedures Q2(R2)." ICH Expert Working Group. https://database.ich.org/sites/default/files/ICH_Q2-R2_Document_Step4_Guideline_2023_1101.pdf.
  36. Foley, Joe P., and John G. Dorsey. 1983. "Equations for calculation of chromatographic figures of merit for ideal and skewed peaks." https://doi.org/10.1021/ac00255a033.
  37. Snyder, Lloyd R., Joseph J. Kirkland, and John W. Dolan. 2010. "Introduction to Modern Liquid Chromatography." Wiley. https://doi.org/10.1002/9780470508183.
  38. Dolan, John W.. 2003. "Peak tailing and resolution." https://www.chromatographyonline.com/view/peak-tailing-and-resolution.
  39. Vivó-Truyols, Gabriel, and Hans-Gerd Janssen. 2010. "Probabilistic approach to peak deconvolution in chromatography." https://doi.org/10.1021/ac101742z.
  40. Kromidas, Stavros. 2017. "HPLC Made to Measure: A Practical Handbook for Optimization." Wiley-VCH.
  41. Heyden, Yvan Vander, et al.. 2009. "Robustness of pharmaceutical liquid chromatographic methods." https://doi.org/10.1016/j.jchromb.2008.10.052.
  42. United States Pharmacopeial Convention. 2024. "USP <621> Chromatography." In United States Pharmacopeia and National Formulary, USP 47-NF 42. Rockville, MD: USP. https://www.uspnf.com/.
  43. European Pharmacopoeia Commission. 2024. "2.2.46 Chromatographic Separation Techniques." In European Pharmacopoeia, 11th ed. Strasbourg: Council of Europe — EDQM. https://www.edqm.eu/en/european-pharmacopoeia-ph-eur-11th-edition.
  44. International Council for Harmonisation (ICH). 2022. "ICH Q2(R2): Validation of Analytical Procedures." International Council for Harmonisation. https://database.ich.org/sites/default/files/ICH_Q2%28R2%29_Guideline_2022_1130.pdf.
  45. International Council for Harmonisation (ICH). 1996. "ICH Q3A: Impurities in New Drug Substances." International Council for Harmonisation. https://database.ich.org/sites/default/files/Q3A%28R2%29%20Guideline.pdf.
  46. International Organization for Standardization. 2017. "ISO/IEC 17025:2017 General Requirements for the Competence of Testing and Calibration Laboratories." Geneva: ISO. https://www.iso.org/standard/66912.html.
  47. Kolthoff, Izaak Maurits, and Philip J. Elving, eds. 1978. Treatise on Analytical Chemistry, Part I: Theory and Practice. 2nd ed. New York: Wiley-Interscience.
  48. Skoog, Douglas A., F. James Holler, and Stanley R. Crouch. 2018. Principles of Instrumental Analysis. 7th ed. Boston: Cengage Learning.
  49. Christian, Gary D., Purnendu K. Dasgupta, and Kevin A. Schug. 2014. Analytical Chemistry. 7th ed. Hoboken, NJ: Wiley.
  50. EURACHEM/CITAC. 2012. "Quantifying Uncertainty in Analytical Measurement." 3rd ed. EURACHEM/CITAC Guide CG 4. https://www.eurachem.org/images/stories/Guides/pdf/QUAM2012_P1.pdf.
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