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Eapearl Chemical

Sorbitol

Sorbitol, D-Sorbitol, Glucitol

CAS 50-70-4 EC 200-061-5 C6H14O6 Alcohol
MolGod_SDSCARD_1
REACH 2020/878
v1 · 22.09.2026

Specification

Product NameSorbitol
Other NamesSorbitol, D-Sorbitol, Glucitol
CAS No.50-70-4
EINECS No.200-061-5
MFC6H14O6
Molecular weight182.17
Purity99.0% (crystalline) / 70% (liquid solution)
AppearanceWhite crystalline powder / Colorless viscous liquid
Density1.49 g/cm³ (solid) / 1.28 g/mL (70% solution, 25°C)
Melting point95–105°C (crystalline)
Boiling pointDecomposes at ~296°C
Flashing point>150°C (closed cup)

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

Packaging and shipping

Drum250 kg
IBC Drum1127 kg
ISO tank (20ft)20–24 m³
ISO tank (40ft)40–50 m³
Sorbitol
Sorbitol
Sorbitol
Sorbitol
Sorbitol

Sorbitol is a naturally derived polyol widely used in food, cosmetics, pharmaceuticals, and industrial applications, serving as a versatile basic raw material. With a sweet taste approximately 60% that of sucrose, it offers lower calories and non-cariogenic properties, making it an ideal sweetener and humectant for sugar-free foods, functional candies, and solid beverages.

In the cosmetics and personal care industry, sorbitol’s excellent moisturizing properties make it a key ingredient in toothpaste, skin care products, and cosmetics, effectively preventing product cracking while improving texture and stability. In the pharmaceutical field, it acts as a pharmaceutical excipient, commonly used as a tablet filler, oral liquid sweetener, and osmotic laxative, meeting pharmacopoeia standards with high safety.

Industrially, sorbitol is utilized in the synthesis of resins, surfactants, and antifreeze agents, playing a crucial role in chemical manufacturing. Our company provides various specifications including crystalline sorbitol and liquid sorbitol (70% content), featuring high purity, stable quality, complete compliance documents, and reliable supply chain guarantees, to meet the customized demands of food, cosmetics, pharmaceutical, and other industries.

Sorbitol Multi-functional Solution | Covers multiple industries such as food, cosmetics, and pharmaceuticals | Customizable parameters, supply chain guaranteeSorbitol Multi-functional Solution | Covers multiple industries such as food, cosmetics, and pharmaceuticals | Customizable parameters, supply chain guaranteeSorbitol Multi-functional Solution | Covers multiple industries such as food, cosmetics, and pharmaceuticals | Customizable parameters, supply chain guarantee

Sorbitol Multi-functional Solution | Covers multiple industries such as food, cosmetics, and pharmaceuticals | Customizable parameters, supply chain guarantee

Product Description

Sorbitol, a naturally occurring polyol derived from glucose, is a highly versatile raw material widely used across food, cosmetics, pharmaceuticals, and industrial sectors.

 With a sweet taste approximately 60% that of sucrose, it delivers only 2.6 kcal per gram—less than half the calories of sugar—while being non-cariogenic, making it a preferred choice for sugar-free and low-calorie formulations.

Applications

• Food Industry: As a sugar substitute and humectant, sorbitol is extensively used in sugar-free candies, chewing gum, baked goods, and beverages.

 It prevents crystallization, retains moisture to extend shelf life, and enhances texture without raising blood glucose levels, making it suitable for diabetic-friendly products.

• Cosmetics & Personal Care: Its exceptional moisturizing properties make it a key ingredient in toothpaste, skin creams, lotions, and hair care products.

 It helps maintain skin hydration, prevents product drying, and improves the smoothness and stability of formulations.

• Pharmaceuticals: Sorbitol serves as an excipient in tablets, capsules, and oral liquids, acting as a binder, filler, and sweetener.

 It also functions as an osmotic laxative in oral solutions, providing gentle relief from constipation while meeting strict pharmacopoeial standards.

• Industrial Applications: It is used in the production of polyethers, surfactants, and alkyd resins, as well as a humectant in tobacco and a stabilizer in concrete admixtures.

Usage Guidelines

• Food & Beverages: Typically added at 2–15% depending on the product. For chewing gum and hard candies, higher concentrations (10–30%) are used to achieve sweetness and texture.

• Cosmetics: Incorporated at 1–10% in formulations to provide moisturization, with higher levels (5–15%) in toothpaste and leave-on skincare products.

• Pharmaceuticals: As a laxative, oral solutions are usually administered at 15–30 mL per dose for adults, following medical guidance. As an excipient, it is used at 5–50% in solid dosage forms.

Our company offers both crystalline sorbitol (99% purity) and liquid sorbitol (70% aqueous solution), with stable supply chains and full compliance documentation to meet the rigorous demands of global industries.

Sorbitol Multi-functional Solution | Covers multiple industries such as food, cosmetics, and pharmaceuticals | Customizable parameters, supply chain guarantee

Sorbitol Multi-functional Solution | Covers multiple industries such as food, cosmetics, and pharmaceuticals | Customizable parameters, supply chain guarantee

Delivery&Payment method

Sorbitol Multi-functional Solution | Covers multiple industries such as food, cosmetics, and pharmaceuticals | Customizable parameters, supply chain guarantee

Frequently asked

In what packaging is Sorbitol shipped?

Standard formats are Drum (250 kg), IBC Drum (1127 kg), ISO tank (20ft) (20–24 m³), ISO tank (40ft) (40–50 m³). Other packaging can be arranged for full-container orders.

Is a safety data sheet available for Sorbitol?

Yes, on request. Safety data sheets are issued per grade and destination market; state the country of import in your inquiry.

What purity do you supply?

The standard grade is 99.0% (crystalline) / 70% (liquid solution). Tighter specifications are confirmed against the production batch before shipment.

Technical reading on Sorbitol

Related products

🧬 Visualiseur de molécule 3D
Chargement de la molécule...
Modèle 3D Sorbitol, CAS 50-70-4, formule brute C6H14O6, masse molaire 182.17 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 50-70-4MolGod_PROPHUB_MAIN
📊 Propriétés physicochimiques

Aperçu rapide

Formule : C6H14O6
MW : 182.17 g/mol
CAS : 50-70-4
🔬 Propriétés avancées

Identifiants chimiques

SMILES: C([C@H]([C@H]([C@@H]([C@H](CO)O)O)O)O)O

Dernière mise à jour : non confirmée

Aperçu chimique: SorbitolMolGod_OVERVIEW_1
Formule bruteC6H14O6[1]
Masse moléculaire182.17 g/mol[1]
Nom IUPAC(2R,3R,4R,5S)-hexane-1,2,3,4,5,6-hexol[1]
SMILESC([C@H]([C@H]([C@@H]([C@H](CO)O)O)O)O)O[1]
InChIKeyFBPFZTCFMRRESA-JGWLITMVSA-N[1]

Synonymes: D-Sorbitol · sorbitol · D-Glucitol · 50-70-4 · glucitol

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 · Nom IUPAC · SMILES · InChIKey

RECHERCHE SCIENTIFIQUE

[1]PubMed2025
Torrino S, Oldham WM, Tejedor AR et al.. (2025). "Mechano-dependent sorbitol accumulation supports biomolecular condensate.". Cell. https://doi.org/10.1016/j.cell.2024.10.048
[2]PubMed2025
Jackstadt MM, Fowle-Grider R, Song MG et al.. (2025). "Intestine-derived sorbitol drives steatotic liver disease in the absence of gut bacteria.". Science signaling. https://doi.org/10.1126/scisignal.
[3]PubMed2024
Lee JY, Tiffany CR, Mahan SP et al.. (2024). "High fat intake sustains sorbitol intolerance after antibiotic-mediated Clostridia depletion from the gut microbiota.". Cell. https://doi.org/10.1016/j.ce
[4]PubMed2024
Papatriantafyllou M. (2024). "Tackling sorbitol intolerance.". Nature reviews. Gastroenterology & hepatology. https://doi.org/10.1038/s41575-024-00921-4
[5]PubMed2023
Yang Z, Qin J, Zhao L et al.. (2023). "Host Sorbitol and Bacterial Sorbitol Utilization Promote Clostridioides difficile Infection in Inflammatory Bowel Disease.". Gastroenterology. https://doi.org/10
[6]PubMed2022
Ulloa JH, Bravo J, Moreno OY et al.. (2022). "Curación de úlceras venosas crónicas inducida con un hidrogel de aloe vera, sorbitol, alantoína y glicerol.". Journal of wound care. https://doi.org/10.12
[7]PubMed2022
Ulloa JH, Bravo J, Moreno OY et al.. (2022). "Curación de úlceras venosas crónicas inducida con un hidrogel de aloe vera, sorbitol, alantoína y glicerol.". Journal of wound care. https://doi.org/10.12
[8]PubMed2022
Li Y, Huang H, Zhang X. (2022). "Identification of catabolic pathway for 1-deoxy-D-sorbitol in Bacillus licheniformis.". Biochemical and biophysical research communications. https://doi.org/10.1016/j.
📚 Références scientifiques (Chicago Author-Date) 8 refs · 1 baz

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

Sources : db:pubmed (8)

  1. db:pubmed Torrino S, Oldham WM, Tejedor AR et al.. (2025). "Mechano-dependent sorbitol accumulation supports biomolecular condensate.". Cell. https://doi.org/10.1016/j.cell.2024.10.048
  2. db:pubmed Jackstadt MM, Fowle-Grider R, Song MG et al.. (2025). "Intestine-derived sorbitol drives steatotic liver disease in the absence of gut bacteria.". Science signaling. https://doi.org/10.1126/scisignal.adt3549
  3. db:pubmed Lee JY, Tiffany CR, Mahan SP et al.. (2024). "High fat intake sustains sorbitol intolerance after antibiotic-mediated Clostridia depletion from the gut microbiota.". Cell. https://doi.org/10.1016/j.cell.2024.01.029
  4. db:pubmed Papatriantafyllou M. (2024). "Tackling sorbitol intolerance.". Nature reviews. Gastroenterology & hepatology. https://doi.org/10.1038/s41575-024-00921-4
  5. db:pubmed Yang Z, Qin J, Zhao L et al.. (2023). "Host Sorbitol and Bacterial Sorbitol Utilization Promote Clostridioides difficile Infection in Inflammatory Bowel Disease.". Gastroenterology. https://doi.org/10.1053/j.gastro.2023.02.046
  6. db:pubmed Ulloa JH, Bravo J, Moreno OY et al.. (2022). "Curación de úlceras venosas crónicas inducida con un hidrogel de aloe vera, sorbitol, alantoína y glicerol.". Journal of wound care. https://doi.org/10.12968/jowc.2022.31.LatAm_sup_6.27
  7. db:pubmed Ulloa JH, Bravo J, Moreno OY et al.. (2022). "Curación de úlceras venosas crónicas inducida con un hidrogel de aloe vera, sorbitol, alantoína y glicerol.". Journal of wound care. https://doi.org/10.12968/jowc.2022.31.LatAm_sup_6a.27
  8. db:pubmed Li Y, Huang H, Zhang X. (2022). "Identification of catabolic pathway for 1-deoxy-D-sorbitol in Bacillus licheniformis.". Biochemical and biophysical research communications. https://doi.org/10.1016/j.bbrc.2021.11.072
Statut réglementaire de la substance
Aucune entrée pour ce CAS dans les listes de restrictions vérifiées (liste candidate SVHC, REACH Annexe XVII ; ensembles de données incomplets - il ne s'agit pas d'une confirmation de conformité). Classification CLP et statut de transport (ADR) : voir la section GHS et la fiche de données de sécurité (SDS).
🧮 Calculateur stœchiométriqueMolGod_STOICH_1
🧪 Données chimiquesMolGod_CHEMDATA_1
Numéro CAS
50-70-4
Formule brute
C6H14O6
Masse molaire
182.17 g/mol
Nom IUPAC (EN)
(2R,3R,4R,5S)-hexane-1,2,3,4,5,6-hexol
SMILES
C([C@H]([C@H]([C@@H]([C@H](CO)O)O)O)O)O
InChIKey
FBPFZTCFMRRESA-JGWLITMVSA-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
Temp. topnienia
93.4

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

🔍 Identifiants externesMolGod_EXTID_1
15 sur 16 systèmes d'ID94%
Base de donnéesIdentifiantActions
CAS Registry Number50-70-4Ouvrir →
PubChem CID5780[1]Ouvrir →
InChIKeyFBPFZTCFMRRESA-JGWLITMVSA-N[1]Ouvrir →
InChIInChI=1S/C6H14O6/c7-1-3(9)5(11)6(12)4(10)2-8/h3-…[1]
SMILESC([C@H]([C@H]([C@@H]([C@H](CO)O)O)O)O)O[1]
EC Number200-061-5[2]Ouvrir →
ChEMBLCHEMBL1682[3]Ouvrir →
DrugBankDB01638Ouvrir →
KEGG CompoundD00096Ouvrir →
HMDBHMDB0000247Ouvrir →
ChemSpider5576[4]Ouvrir →
MeSH UID (NLM)D013012Ouvrir →
UNII (FDA)506T60A25ROuvrir →
NSC Number (NCI)25944Ouvrir →
WikiData QIDQ245280Ouvrir →

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) (5)

  1. ★★☆☆☆ CROSSREF 🔓 LIBRE ❓ non vérifié Anonymous. 1988. "Sorbitol see Charcoal/sorbitol." Reactions 191 (1): 10-10. https://doi.org/10.1007/bf03278385. lien [consulté: 2026-09-22] CC0 (metadata)
  2. ★★☆☆☆ CROSSREF 🔓 LIBRE ❓ non vérifié Anonymous. "Sorbitol.". https://doi.org/10.31003/uspnf_r4012_01_01. lien [consulté: 2026-09-22] CC0 (metadata)
  3. ★★☆☆☆ CROSSREF 🔓 LIBRE ❓ non vérifié Anonymous. "Sorbitol.". https://doi.org/10.31003/fcc_f100597_05_01. lien [consulté: 2026-09-22] CC0 (metadata)
  4. ★★☆☆☆ CROSSREF 🔓 LIBRE ❓ non vérifié Anonymous. "Sorbitol.". https://doi.org/10.31003/uspnf_r4012_01_02. lien [consulté: 2026-09-22] CC0 (metadata)
  5. ★★☆☆☆ CROSSREF 🔓 LIBRE ❓ non vérifié Anonymous. "Sorbitol.". https://doi.org/10.31003/uspnf_m77640_40101_01. lien [consulté: 2026-09-22] CC0 (metadata)
📡 Spectroscopie — CAS 50-70-4MolGod_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)
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🔗 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)

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📚 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. ⓘ Source unique ★★☆☆☆ ⓘ Source unique ★★☆☆☆

IR — infrarouge à transformée de Fourier

Chargement de IR — infrarouge à transformée de Fourier…

MS — spectrométrie de masse (EI 70eV)

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Propriétés structurellesMolGod_STRUCT3D_1

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❓ Questions fréquentes (3)MolGod_FAQ_1
What is 50-70-4?
50-70-4 (CAS 50-70-4) is a chemical compound. The chemical data comes from PubChem (National Institutes of Health, USA).
Utile ?
What is the CAS number of 50-70-4?
The CAS number for 50-70-4 is 50-70-4. A CAS Registry Number is the standard identifier for a chemical substance in scientific literature and in trade.
Utile ?
How should 50-70-4 be stored?
50-70-4 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: 5780

🔄 Convertisseur d'unités de concentration LIVE MolGod_UNITCONV_1

Saisissez la concentration Sorbitol dans n'importe quelle unité — le reste sera calculé automatiquement.

MW : 182.17 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
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Calculs selon : IUPAC Gold Book ↗, Merck ↗

Chimie computationnelleMolGod_COMPCHEM_1

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🛡️ Sécurité — CAS 50-70-4MolGod_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.

Aucune classification GHS harmonisée pour cette substance — voir la fiche de données de sécurité (SDS) actuelle du fournisseur.

📚 Références scientifiques consolidées — Chicago auteur-date 10 sources

Références collectées dans tous les onglets du Safety Hub. CAS : 50-70-4 · 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

Lek zatwierdzony (Faza 4)

Phase I
Phase II
Phase III
Approuvé

Autorisé à la commercialisation par les autorités réglementaires.

ChEMBL CHEMBL1682 ↗

Bibliographie (étendue) (5)

  1. ★★☆☆☆ CROSSREF 🔓 LIBRE ❓ non vérifié Anonymous. 1988. "Sorbitol see Charcoal/sorbitol." Reactions 191 (1): 10-10. https://doi.org/10.1007/bf03278385. lien [consulté: 2026-09-22] CC0 (metadata)
  2. ★★☆☆☆ CROSSREF 🔓 LIBRE ❓ non vérifié Anonymous. "Sorbitol.". https://doi.org/10.31003/uspnf_r4012_01_01. lien [consulté: 2026-09-22] CC0 (metadata)
  3. ★★☆☆☆ CROSSREF 🔓 LIBRE ❓ non vérifié Anonymous. "Sorbitol.". https://doi.org/10.31003/fcc_f100597_05_01. lien [consulté: 2026-09-22] CC0 (metadata)
  4. ★★☆☆☆ CROSSREF 🔓 LIBRE ❓ non vérifié Anonymous. "Sorbitol.". https://doi.org/10.31003/uspnf_r4012_01_02. lien [consulté: 2026-09-22] CC0 (metadata)
  5. ★★☆☆☆ CROSSREF 🔓 LIBRE ❓ non vérifié Anonymous. "Sorbitol.". https://doi.org/10.31003/uspnf_m77640_40101_01. lien [consulté: 2026-09-22] 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
Sorbitol
Formule
C6H14O6
logP (XLogP3)
-3.10
Masse (g/mol)
182.17
Polarité
Hydrophile (polaire)

⚠️ Estimation HSP (littérature / contribution de groupes). Données indicatives — ne remplacent pas les études expérimentales.

Ra < R₀ = good miscibility · Ra < 1,5×R₀ = borderline · above = poor (R₀ — radius of the Hansen sphere of this molecule) For this molecule R₀ = 20..

Solvant Compat. Ra Visuel GC-MS HPLC Applications Références
Water (H₂O)+ Bonne15.9
✗ NieA (aqueous) (RP)
buffercell cultureanalyticalextraction (hydrophilic)
Ethanol (EtOH)+ Bonne15.5
✗ NieA/B modifier (RP/NP)
extractionspectroscopy (UV-Vis)synthesisHPLC modifier
Methanol (MeOH)+ Bonne13.9
✗ NieA/B (RP) (RP)
HPLC (eluent)LC-MSKarl FischerUV-transparent to 205 nm
Acetone~ Moy.25.9
✗ NieB modifier (NP)
GC headspacecrystallisationdegreasingsynthesis
Acetonitrile (ACN)~ Moy.27.1
✗ NieB (RP) (RP)
HPLC eluent (gold standard)LC-MS (low UV cut-off, 190 nm)peptide analysis
DMSO~ Moy.21.0
✗ NieN/A (N/A)
NMR (d6-DMSO)cell biology (cryopreservation)drug deliverysynthesis
THF~ Moy.25.1
✗ NieB (NP) (NP)
GPC/SEC (polymer analysis)Grignard synthesisorganometallics
DCM (CH₂Cl₂)~ Moy.25.9
✓ TakB (NP) (NP)
extractionNP-HPLCGC-MScrystallisation (anti-solvent)
Chloroform (CHCl₃)~ Moy.27.5
✓ TakN/A (toxic) (N/A)
NMR (CDCl3)lipid extraction (Folch method)NP-TLC
Hexane− Faible35.3
✓ TakA (NP) (NP)
NP-HPLCoil extraction (lipids)GC-MSTLC (NP)
Toluene− Faible31.4
✓ 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 50-70-4 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

Vérifiez si Sorbitol 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
Sorbitol• D-Sorbitol / D-Glucitol• IUPAC: (2R,3R,4R,5S)-hexane-1,2,3,4,5,6-hexol• CAS: 50-70-4• EC: 200-061-5• Formule: C6H14O6• Masse: 182.17 g/molAnhui 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.

MW182.2LogP-3.1HBD6HBA6RotB5TPSA121 Ų
✓ Lipinski Ro5✓ Veber✓ Egan✗ Ghose (LogP=-3.1)✗ REOS (MW=182, HBD=6)✗ Lead-like Ro3 (HBD=6, HBA=6, RotB=5)
PropriétéValeurÉvaluation
Absorption (GI)élevée
Perméabilité BHEnon
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.)✓ non
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. Torrino S, Oldham WM, Tejedor AR et al.. (2025). "Mechano-dependent sorbitol accumulation supports biomolecular condensate.". Cell. https://doi.org/10.1016/j.cell.2024.10.048
  22. Jackstadt MM, Fowle-Grider R, Song MG et al.. (2025). "Intestine-derived sorbitol drives steatotic liver disease in the absence of gut bacteria.". Science signaling. https://doi.org/10.1126/scisignal.adt3549
  23. Lee JY, Tiffany CR, Mahan SP et al.. (2024). "High fat intake sustains sorbitol intolerance after antibiotic-mediated Clostridia depletion from the gut microbiota.". Cell. https://doi.org/10.1016/j.cell.2024.01.029
  24. Papatriantafyllou M. (2024). "Tackling sorbitol intolerance.". Nature reviews. Gastroenterology & hepatology. https://doi.org/10.1038/s41575-024-00921-4
  25. Yang Z, Qin J, Zhao L et al.. (2023). "Host Sorbitol and Bacterial Sorbitol Utilization Promote Clostridioides difficile Infection in Inflammatory Bowel Disease.". Gastroenterology. https://doi.org/10.1053/j.gastro.2023.02.046
  26. Ulloa JH, Bravo J, Moreno OY et al.. (2022). "Curación de úlceras venosas crónicas inducida con un hidrogel de aloe vera, sorbitol, alantoína y glicerol.". Journal of wound care. https://doi.org/10.12968/jowc.2022.31.LatAm_sup_6.27
  27. Ulloa JH, Bravo J, Moreno OY et al.. (2022). "Curación de úlceras venosas crónicas inducida con un hidrogel de aloe vera, sorbitol, alantoína y glicerol.". Journal of wound care. https://doi.org/10.12968/jowc.2022.31.LatAm_sup_6a.27
  28. Li Y, Huang H, Zhang X. (2022). "Identification of catabolic pathway for 1-deoxy-D-sorbitol in Bacillus licheniformis.". Biochemical and biophysical research communications. https://doi.org/10.1016/j.bbrc.2021.11.072
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  44. Lutz Schneider. 2019. "Sorbitol Intolerance - Living Better with Sorbitol Intolerance." Independently Published.
  45. 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.
  46. ECHA. 2024. "REACH Guidance." European Chemicals Agency.
  47. 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.
  48. Anonymous. 2008. "Phytochemistry research progress." Nova Biomedical Books.
🧪 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 50-70-4MolGod_LITHUB_MAIN
⭐ Principales découvertes (littérature scientifique) 8 publications
🏆 CAS 50-70-4 — multi-criteria ranking (W12): 30% citations · 20% actualité · 20% thème · 15% historique · 15% open access.
  1. #1
    Torrino S, Oldham WM, Tejedor AR et al. (2025) · Cell
    Pourquoi c'est important : Récente (2025) · open access
    SCORE 6.25 Mécanisme Open Access DOI ↗ PubMed ↗
  2. #2
    Lee JY, Tiffany CR, Mahan SP et al. (2024) · Cell
    Pourquoi c'est important : Récente (2024) · open access
    SCORE 6.25 Mécanisme Open Access DOI ↗ PubMed ↗
  3. #3
    Jackstadt MM, Fowle-Grider R, Song MG et al. (2025) · Science signaling
    Pourquoi c'est important : Récente (2025) · open access
    SCORE 6.25 Mécanisme Open Access DOI ↗ PubMed ↗
  4. #4
    Yang Z, Qin J, Zhao L et al. (2023) · Gastroenterology
    Pourquoi c'est important : Récente (2023) · open access
    SCORE 6.15 Mécanisme Open Access DOI ↗ PubMed ↗
  5. #5
    Papatriantafyllou M (2024) · Nature reviews. Gastroenterology & hepatology
    Pourquoi c'est important : Récente (2024)
    SCORE 4 Mécanisme DOI ↗ PubMed ↗
  6. #6
    Ulloa JH, Bravo J, Moreno OY et al. (2022) · Journal of wound care
    Pourquoi c'est important : Revue
    SCORE 3.6 Revue DOI ↗ PubMed ↗
  7. #7
    Ulloa JH, Bravo J, Moreno OY et al. (2022) · Journal of wound care
    Pourquoi c'est important : Revue
    SCORE 3.6 Revue DOI ↗ PubMed ↗
  8. #8
    Li Y, Huang H, Zhang X (2022) · Biochemical and biophysical research communications
    Pourquoi c'est important : Sélectionné par un score multicritère (citations + actualité + thème + historique + OA).
    SCORE 3.6 Mécanisme DOI ↗ PubMed ↗
🔬 HPLC — méthodes et paramètres — CAS 50-70-4MolGod_HPLCHUB_MAIN
🔬 Méthodes HPLC/GC (2 metod)
📄
Automatic periodical negative air ions reduce postharvest decay and maintain texture and flavor quality of ‘Fuji’ apple during long-term cold storage
HPLCFood Chemistry: X202490% ✓OAResearch method (specificity, robustness)
Colonne : NH2, 250 x 5.0 mm, 4.6 μm
Phase : comprised 85 % acetonitrile in water, flow rate at 1 mL min−1, oven temperature at…
Détection : RID
Débit : 1.00 mL/min
Temp. : 80.0 °C
Inj.: 20 μL
Zheng Y, Jiang Y, Yang X, Fu Z, Zhao Z, Li X, et al. Automatic periodical negative air ions reduce postharvest decay and maintain texture and flavor quality of ‘Fuji’ apple during long-term cold storage. Food Chemistry: X. 2024;24:101972. doi:10.1016/j.fochx.2024.101972
The aim of this study was to explore the effect of periodical negative air ions (NAI) on the quality of ‘Fuji’ apple fruit after treatment at 0, 30, 60, and 90 min every 4 weeks. NAI for 60 min decreased weight loss, mitigated decay, and maintained hardness of the apple fruit during the 40 weeks of storage. Treatment of fruits with NAI for 60 min enhanced the apple defense ability against pathogens by maintaining the cell wall integrity and improving the related-enzyme activities as well as accumulation of total phenols and flavonoids. Reverse-phase HPLC and solid-phase microextraction GC–MS analysis showed that NAI treatment for 60 min increased the levels of fructose, sucrose, sorbitol, malic acid and volatiles, such as 2-hexenal, 2-methylbutyl acetate, hexyl acetate, and ethyl butanoate. Taken together, NAI is promising for improving the quality ‘Fuji’ apples during the cold storage.
‘Fuji’ applePostharvest decayFlavor qualityNegative air ionsDefense-related enzyme
📄
Lipase-Catalyzed Production of Sorbitol Laurate in a “2-in-1” Deep Eutectic System: Factors Affecting the Synthesis and Scalability
HPLCMolecules202191% ✓CC-BYResearch method (specificity, robustness)
Colonne : C18, 54 x 12 mm
Phase : , solvent A, was water and solvent B was acetonitrile
Détection : ELSD
Débit : 1.00 mL/min
Temp. : 50.0 °C
Inj.: 195 μL
Gradient: such as 2nd solvent percentage started at 0% for 1.5…
Delavault A, Opochenska O, Laneque L, Soergel H, Muhle-Goll C, Ochsenreither K, et al. Lipase-Catalyzed Production of Sorbitol Laurate in a “2-in-1” Deep Eutectic System: Factors Affecting the Synthesis and Scalability. Molecules. 2021;26:2759. doi:10.3390/molecules26092759
Surfactants, such as glycolipids, are specialty compounds that can be encountered daily in cleaning agents, pharmaceuticals or even in food. Due to their wide range of applications and, more notably, their presence in hygiene products, the demand is continuously increasing worldwide. The established chemical synthesis of glycolipids presents several disadvantages, such as lack of specificity and selectivity. Moreover, the solubility of polyols, such as sugars or sugar alcohols, in organic solvents is rather low. The enzymatic synthesis of these compounds is, however, possible in nearly water-free media using inexpensive and renewable building blocks. Using lipases, ester formation can be achieved under mild conditions. We propose, herein, a “2-in-1” system that overcomes solubility problems, as a Deep Eutectic System (DES) made of sorbitol and choline chloride replaces either a purely organic or aqueous medium. For the first time, 16 commercially available lipase formulations were compared, and the factors affecting the conversion were investigated to optimize this process, owing to a newly developed High-Performance Liquid Chromatography-Evaporative Light Scattering Detector (HPLC-ELSD) method for quantification. Thus, using 50 g/L of lipase formulation Novozym 435® at 50 °C, the optimized synthesis of sorbitol laurate (SL) allowed to achieve 28% molar conversion of 0.5 M of vinyl laurate to its sugar alcohol monoester when the DES contained 5 wt.% water. After 48h, the de novo synthesized glycolipid was separated from the media by liquid–liquid extraction, purified by flash-chromatography and characterized thoroughly by one- and two-dimensional Nuclear Magnetic Resonance (NMR) experiments combined to Mass Spectrometry (MS). In completion, we provide initial proof of scalability for this process. Using a 2.5 L stirred tank reactor (STR) allowed a batch production reaching 25 g/L in a highly viscous two-phase system.
glycolipidsugar alcoholesterbiosynthesisoptimizationunconventional media
📈 Validation de la méthode (ICH Q2)

Aucune donnée de validation. Contactez l'auteur de la méthode.

Paramètres selon : ICH Q2(R2) ↗

📋 Comparaison des méthodes
Technique Colonne Temps d'analyse Détection Phase mobile Source
HPLC NH2 RID comprised 85 % acetonitrile in water, flow rate at… DOI ↗
HPLC C18 ELSD , solvent A, was water and solvent B… DOI ↗
🔧 Dépannage HPLC/GC
Pics larges / traînée
Causes : Colonne usée, mauvais pH de la phase, surcharge de la colonne, volume mort
Solution : Remplacer la colonne, vérifier le pH du tampon (±0.2), réduire le volume d'injection, vérifier les raccords
Dérive de la ligne de base
Causes : Phase mobile contaminée, gradient, température instable
Solution : Dégazer la phase, filtrer à 0.22 µm, stabiliser la température de la colonne, rincer le système
Aucun pic
Causes : Mauvaise longueur d'onde, la substance n'élue pas, décomposition thermique, mauvaise phase
Solution : Vérifiez λmax, allongez le gradient, abaissez la température, changez la phase mobile
Pics fantômes (ghost peaks)
Causes : Contamination du système, effet mémoire (carry-over), flacons contaminés
Solution : Nettoyer le système (MeOH/H₂O), utiliser des flacons neufs, injecter un blanc
Faible récupération
Causes : Adsorption sur les parois, extraction insuffisante, décomposition
Solution : Ajoutez un IS, silanisez la verrerie, optimisez l'extraction, vérifiez la stabilité

Sources : Snyder, Kirkland & Dolan ↗, Waters ↗

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 50-70-4) are based on literature-backed models (Snyder-Dolan LSS, Neue pore-size rules).

Retention Time
-6.55 min
Range: 0.5 – -8.52
confidence: medium
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
= 2.745 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

What is „system suitability" and do I have to do it?

The teacher said „run an SST". You have no idea what that is. The USP method has a checklist — 4 parameters. Which are critical?

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

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=-3.1 rekomendacja zależy: jeśli logP<2 (polarny) → MeOH retencja wystarczy; logP≥2 (niepolarny) → ACN daje lepszy peak shape. Dla tej molekuły (MW=182.17, CAS 50-70-4) zaczynaj od ACN w gradiencie 5→95% B.

Source: Snyder LSS Model

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

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

Stability studies — forced degradation

5 degradation conditions (acidic / alkaline / oxidation / light / temperature). You must separate all degradation products.

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 Snyder: Rt ≈ 2.5·logP + 1.2 min. Dla (2R,3R,4R,5S)-hexane-1,2,3,4,5,6-hexol (logP=-3.1) → szacunkowe Rt=-6.55 min. ±30% wariancja zależnie od dead volume i gradient slope. Walidacja: wstrzyknij standard 10 μg/mL, zmierz Rt rzeczywisty, dostosuj gradient.

Source: Predictive modeling

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

Source: Snyder Seminar

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

Column Choice Dilemma

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?

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: analytes MW10000 (proteins) → pore 1000 Å. For MW=182.17 (CAS 50-70-4) use a standard C18 100 Å column.

Source: Phenomenex Guide

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

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

Detection Gotcha

Why does my chromatogram look like a cardiogram?

The baseline jumps ±10 mAU, you see peaks but also „humps" between them. Integration is impossible.

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

10 columns in 2 months — wrong filter

Q1 audit: column cost +340% vs Q4. QA blamed the lab. Investigation: a new operator was using a 0.45 μm filter instead of 0.22 μm. Microparticles got through the guard and were killing the main columns by the 100th injection.
Lesson learned (Marta K., QC supervisor, pharma company, 2025-02-10):
The filter SOP must be WRITTEN and checked every batch. 0.22 μm is the standard per USP . Cost of the error: 10 columns × 1800 PLN = 18,000 PLN + audit finding.

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 (2R,3R,4R,5S)-hexane-1,2,3,4,5,6-hexol (CAS 50-70-4) 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

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?

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.

Method transfer from Warsaw to Krakow failed

R&D team, 2 sites 2025-09-18 Poziom 5/5
Ce qui s'est passé :

At first we ran it in the Warsaw lab. Transfer to Kraków: every Rt shifted +0.8 min, Rs borderline at 1.9-2.1. Investigation: buffers from different manufacturers (Merck vs Sigma-Aldrich) differed by 0.2 in pH. 6 weeks of transfer revalidation.

💡 Lekcja:

Transfer requires a SPEC for the buffer (manufacturer, grade, LOT). Not just „NH4HCO3 10 mM pH 7.0". Run a preliminary system suitability on the new instrument before the full transfer.

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.

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🔄 Alternatywne produktyMolGod_ALTPROD_1
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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 50-70-4). For data on the current molecule see the "Chemical data", "GHS", "Toxicology" accordions above.
2-Methyl-1,3-Propanediol (MPO)
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PEG (350/400/600/800/1000/2000)
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PPG (400/700/1000/2000/3000/4000)
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1,1′-Oxydi-2-propanol
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N-Hexyl alcohol
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📄 Certificats d'analyse (CoA) CAS 50-70-4 aucun MolGod_COA_2

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📚 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) (5)

  1. ★★☆☆☆ CROSSREF 🔓 LIBRE ❓ non vérifié Anonymous. 1988. "Sorbitol see Charcoal/sorbitol." Reactions 191 (1): 10-10. https://doi.org/10.1007/bf03278385. lien [consulté: 2026-09-22] CC0 (metadata)
  2. ★★☆☆☆ CROSSREF 🔓 LIBRE ❓ non vérifié Anonymous. "Sorbitol.". https://doi.org/10.31003/uspnf_r4012_01_01. lien [consulté: 2026-09-22] CC0 (metadata)
  3. ★★☆☆☆ CROSSREF 🔓 LIBRE ❓ non vérifié Anonymous. "Sorbitol.". https://doi.org/10.31003/fcc_f100597_05_01. lien [consulté: 2026-09-22] CC0 (metadata)
  4. ★★☆☆☆ CROSSREF 🔓 LIBRE ❓ non vérifié Anonymous. "Sorbitol.". https://doi.org/10.31003/uspnf_r4012_01_02. lien [consulté: 2026-09-22] CC0 (metadata)
  5. ★★☆☆☆ CROSSREF 🔓 LIBRE ❓ non vérifié Anonymous. "Sorbitol.". https://doi.org/10.31003/uspnf_m77640_40101_01. lien [consulté: 2026-09-22] CC0 (metadata)
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📚 RÉFÉRENCES (Bibliographie agrégée, Chicago Author-Date) 120 éléments

Toutes les sources scientifiques citées dans les accordéons ci-dessus pour le CAS 50-70-4. Format : Chicago Manual of Style, 17e éd., système Auteur-Date.

🗄️ Bases de données scientifiques

  1. NIST. n.d. NIST Chemistry WebBook: CAS 50-70-4. Gaithersburg, MD: National Institute of Standards and Technology. https://webbook.nist.gov/cgi/cbook.cgi?ID=50-70-4.
  2. AIST. n.d. Spectral Database for Organic Compounds (SDBS): CAS 50-70-4. 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 50-70-4. Bethesda, MD: National Center for Biotechnology Information (NCBI), National Library of Medicine. https://pubchem.ncbi.nlm.nih.gov/#query=50-70-4.

📐 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.

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