Does BMA mean n-butyl methacrylate or isobutyl methacrylate?

In most commercial usage the bare abbreviation means the normal isomer, n-butyl methacrylate, CAS 97-88-1. The branched isomer, isobutyl methacrylate, is a different substance with its own identifiers and a different contribution to copolymer hardness, and the tertiary isomer is different again. Because all three are abbreviated loosely in day-to-day correspondence, an order written as BMA alone is ambiguous. Write the full chemical name and the CAS number on every enquiry, purchase order and goods-inwards record.

Why must the monomer not be blanketed with pure nitrogen?

Because the stabiliser used in commercial methacrylate monomers requires dissolved oxygen to function. It intercepts radicals by a mechanism that consumes oxygen, so a drum stripped of oxygen contains an inhibitor that is chemically present and functionally absent. The correct headspace is air, or air diluted with nitrogen to a specified oxygen content, never an inert blanket. This is one of the very few cases in a chemical store where displacing oxygen makes a material more dangerous rather than less, and it catches people whose instinct is trained on flammable solvents.

How should inhibitor content be read on a certificate?

As a starting condition rather than a permanent property. The certificate reports the inhibitor level at release; that level falls in storage as the stabiliser does its job, and it falls faster in warm conditions, in light and in the presence of contamination. A long-stored drum can meet its original certificate on every other line while having very little inhibitor left. Where storage has been long or uncertain, retest the inhibitor level before charging a reactor rather than relying on the release figure.

What is popcorn polymerisation and why does it matter here?

It is a self-propagating, expanding polymer growth that forms in dead legs, vapour spaces, valve bonnets and residues where inhibitor cannot reach. Once seeded it continues under conditions that would not start a normal polymerisation, and it grows mechanically enough to jam valves and distort equipment. The controls are housekeeping controls: no unswept dead legs, no long-standing residues, no lines left full between campaigns, and clean vessels before refilling. It is not a reason to avoid methacrylate monomers, but it is a reason to design the pipework as if the monomer were reactive, because it is.

How does the butyl ester change a copolymer compared with the methyl one?

The four-carbon ester side chain is flexible and bulky, so it loosens chain packing and lowers the temperature at which the polymer softens. Against the methyl ester it gives a softer, more flexible and more extensible polymer, better adhesion and easier film formation, at the cost of hardness and block resistance. Against the corresponding acrylate it gives a harder polymer with the weathering advantage of the methacrylate backbone. Formulators use it as the soft component of an all-methacrylate system, which keeps the durability while tuning flexibility.

Qu'est-ce que Diethyl phthalate (DEP) ?

Diethyl phthalate (DEP) est un composé chimique enregistré sous le numéro CAS 84-66-2. Formule brute: C12H14O4. Masse molaire: 222.24 g/mol. IUPAC: diethyl benzene-1,2-dicarboxylate.

Quel est le numéro CAS de Diethyl phthalate (DEP) ?

Le numéro CAS de Diethyl phthalate (DEP) est 84-66-2 — un identifiant unique du Chemical Abstracts Service (CAS).

Quelle est la formule brute de Diethyl phthalate (DEP) ?

Formule brute: C12H14O4. Masse molaire: 222.24 g/mol. logP (XLogP3): 2.5. PSA: 52.6 Å².

Quels sont les dangers GHS de Diethyl phthalate (DEP) ?

Selon la classification GHS, Diethyl phthalate (DEP) doit porter les mentions de danger suivantes : H401 (Działa toksycznie na organizmy wodne), H315 (Provoque une irritation cutanée.), H317 (Peut provoquer une allergie cutanée.), H320 (Provoque une irritation des yeux.), H335 (Peut irriter les voies respiratoires.).

Où acheter Diethyl phthalate (DEP) ?

Diethyl phthalate (DEP) est disponible dans notre boutique. Voir le produit : https://epchems.online/products/diethyl-phthalate/

D'où proviennent les données chimiques de Diethyl phthalate (DEP) ?

Les données chimiques de Diethyl phthalate (DEP) proviennent de sources faisant autorité : PubChem (NIH). PubChem CID: 6781. Conformes au règlement CLP (CE 1272/2008), disponibles sous licence CC-BY 4.0.

Diethyl phthalate (DEP)

Diethyl Phthalate

CAS 84-66-2 · C₁₂H₁₄O₄ · MW 222.24 g/mol

À propos de Diethyl phthalate (DEP)

Diethyl phthalate (DEP) est un composé chimique enregistré sous le numéro CAS 84-66-2, de formule brute C₁₂H₁₄O₄, et de masse molaire 222.24 g/mol.

La molécule contient 30 atomes reliés par 30 liaisons chimiques. Le nom systématique IUPAC complet de ce composé est diethyl benzene-1,2-dicarboxylate. Le modèle 3D interactif ci-dessus permet de visualiser l'arrangement spatial des atomes — vous pouvez le faire pivoter à la souris, zoomer avec la molette et basculer entre les modes de visualisation squelette / Ball & Stick / Space Fill.

Du point de vue des propriétés physico-chimiques, le coefficient de partage logP = 2.5 (valeur positive, composé lipophile), surface polaire PSA = 52.6 Å², 0 donneurs et 4 accepteurs de liaisons hydrogène. Ces paramètres sont essentiels pour évaluer la biodisponibilité et l'interaction avec les biomolécules.

Les données chimiques de ce composé proviennent de PubChem (NIH NLM NCBI), l'une des plus grandes bases de données chimiques au monde. Toutes les informations sont mises à jour automatiquement et enrichies de traductions des mentions de danger GHS conformes au règlement CLP (CE 1272/2008). Le widget ci-dessus peut être utilisé à des fins éducatives, de recherche et commerciales.

Propriétés physico-chimiques

Wzór sumaryczny	C₁₂H₁₄O₄
Masa molowa	222.24 g/mol
IUPAC	diethyl benzene-1,2-dicarboxylate
SMILES	`CCOC(=O)C1=CC=CC=C1C(=O)OCC`
InChIKey	`FLKPEMZONWLCSK-UHFFFAOYSA-N`
logP (XLogP3)	2.5
PSA	52.6 Å²
HBD / HBA	0 / 4
PubChem CID	CID 6781 ↗

Sécurité GHS

Sygnał: Uwaga

GHS07

H401 — Działa toksycznie na organizmy wodne

H315 — Działa drażniąco na skórę

H317 — Może powodować reakcję alergiczną skóry

H320 — H320

H335 — Może powodować podrażnienie dróg oddechowych

H336 — Może wywoływać uczucie senności lub zawroty głowy

Littérature scientifique

Literatura naukowa

20 artykułów · 9 open access · Źródła: PubMed, OpenAlex, Semantic Scholar

📈 Timeline publikacji (20 artykułów)

Wysokość słupka = liczba artykułów w roku. Hover dla szczegółów.

Diethyl phthalate : CAS#: 84-66-2 [Spanish]

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NTP Toxicology and Carcinogenesis Studies of Diethylphthalate (CAS No. 84-66-2) in F344/N Rats and B6C3F1 Mice (Dermal Studies) with Dermal Initiation/ Promotion Study of Diethylphthalate and Dimethylphthalate (CAS No. 131-11-3) in Male Swiss (CD-1(R)) Mice.

(1995)

Cytowania: 6$ PaywallPubMed ↗

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Exposure to diethyl phthalates impairs ovarian reserve and oocyte maturation in female mice.

Chen J, Chen L, Chen Y et al. (2025) · Ecotoxicology and environmental safety

Open AccessDOI ↗PubMed ↗PDF ↗

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Unraveling diethyl phthalate-induced prostate carcinogenesis: core targets revealed by integrated network toxicology, machine learning, and structural validation.

Liu H, Jiang J, Tan Y et al. (2025) · Human genomics

Open AccessDOI ↗PubMed ↗PDF ↗

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A physiologically based pharmacokinetic model of diethyl phthalates in humans.

Chen S, Shi Z, Zhang Q (2024) · Environmental pollution (Barking, Essex : 1987)

Open AccessDOI ↗PubMed ↗PDF ↗

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Diethyl 2,6-Dimethyl,4-(1,1,1-trichloromethyl)-1,4-dihydropyridine-3,5-dicarboxylate

Fatma Aydin, Recep Ozen (2006) · Molbank

Open AccessDOI ↗PDF ↗

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Bis[diethyl(hydroxy)ammonium] benzene-1,4-dicarboxylate

Hai-Bin Wang, De-Ming Xie, Hai-Xiang Chen et al. (2010) · International Union of Crystallography

Open AccessDOI ↗PDF ↗

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Mixtures of Diethyl Sulfoxide and Methanol: Structure and Thermodynamics

Vitaly V. Chaban, Nadezhda A. Andreeva (2021) · arXiv (2112.11531v1)

Open AccessPDF ↗

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Diethyl Sulfoxide as a Novel Neutral Ligand in the Platinum Complex Anion

Vitaly V. Chaban (2021) · arXiv (2111.03292v1)

Open AccessPDF ↗

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Slip and friction mechanisms at polymer semi-dilute solutions / solid interfaces

Marion Grzelka, Iurii Antoniuk, Eric Drockenmuller et al. (2021) · arXiv (2105.04188v1)

Open AccessDOI ↗PDF ↗

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Polariton assisted down-conversion of photons via nonadiabatic molecular dynamics: a molecular dynamical Casimir effect

Juan B. Pérez-Sánchez, Joel Yuen-Zhou (2019) · arXiv (1909.13024v1)

Open AccessPDF ↗

Benzene – diethyl ketone association. The excess molar enthalpy of (cyclohexane + diethyl ketone)(g) and (benzene + diethyl ketone)(g) from temperatures 373.2 K to 423.2 K

C.J. Wormald, C. Mathonat (1998) · The Journal of Chemical Thermodynamics

Cytowania: 5$ PaywallDOI ↗

Fluorescence Signal Amplification: Red Carbon Dots@SiO(2)-Induced Ultra-sensitive Immunoassay for Diethyl Phthalate.

Chen B, Li L, Yang Q et al. (2023) · Journal of fluorescence

$ PaywallDOI ↗PubMed ↗

A Mechanistic Understanding of Hydrogen Peroxide Decomposition by Vanadium Minerals for Diethyl Phthalate Degradation.

Fang G, Deng Y, Huang M et al. (2018) · Environmental science & technology

$ PaywallDOI ↗PubMed ↗

Self-corrected dual-optical immunosensors using carbon dots@SiO(2)@MnO(2) improving diethyl phthalate detection accuracy.

Chen B, Li L, Yang Q et al. (2023) · Talanta

$ PaywallDOI ↗PubMed ↗

Reproductive toxicology. Diethylphthalate.

(1997) · Environmental health perspectives

$ PaywallPubMed ↗

Efficient transformation of diethyl phthalate using calcium peroxide activated by pyrite.

Zhou Y, Huang M, Wang X et al. (2020) · Chemosphere

$ PaywallDOI ↗PubMed ↗

Catalytic Annulation of Diethyl Methylenecyclopropane-1,1-dicarboxylate with 1,1-Dicyanoalkenes

$ PaywallDOI ↗

Catalytic Annulation of Diethyl Methylenecyclopropane-1,1-dicarboxylate with 1,1-Dicyanoalkenes

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Diethyl Acetylene Dicarboxylate 762‐21‐0

(2004) · Sax's Dangerous Properties of Industrial Materials

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Dane z PubMed (NIH NLM), OpenAlex (CC0), Semantic Scholar (AI2). AI Summary wygenerowane przez Semantic Scholar TLDR. Artykuły z ikoną wymagają płatnego dostępu.

Synonymes

DIETHYL PHTHALATE · 84-66-2 · Ethyl phthalate · phthalic acid diethyl ester · Anozol · diethyl benzene-1,2-dicarboxylate · Neantine · Phthalol · Solvanol · Palatinol A · Placidol E · Unimoll DA · Diethyl o-phthalate · Phthalsaeurediaethylester · o-Bis(ethoxycarbonyl)benzene

Sources des données

📊 PubChem CID 6781 — NIH
🔬 NIST WebBook — spektroskopia
💊 ChEMBL — bioaktywność

Acheter en boutique

Diethyl phthalate (DEP) →

Molécules apparentées

1,2-Propylene Diacetate (PGDA) CAS 623-84-7 · C7H12O4 Iron oxide yellow CAS 51274-00-1 · FeH₃O₃ Diethylene Glycol Monoethyl Ether CAS 111-90-0 · C6H14O3 Sorbitol CAS 50-70-4 · C6H14O6 Methylene Chloride CAS 75-09-2 · CH₂Cl₂ Terephthalic Acid CAS 100-21-0 · C8H6O4