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 Cocamidopropyl betaine ?

Cocamidopropyl betaine est un composé chimique enregistré sous le numéro CAS 4292-10-8. Formule brute: C19H38N2O3. Masse molaire: 342.5 g/mol. IUPAC: 2-[3-(dodecanoylamino)propyl-dimethylazaniumyl]acetate.

Quel est le numéro CAS de Cocamidopropyl betaine ?

Le numéro CAS de Cocamidopropyl betaine est 4292-10-8 — un identifiant unique du Chemical Abstracts Service (CAS).

Quelle est la formule brute de Cocamidopropyl betaine ?

Formule brute: C19H38N2O3. Masse molaire: 342.5 g/mol. logP (XLogP3): 5.4. PSA: 69.2 Å².

Quels sont les dangers GHS de Cocamidopropyl betaine ?

Selon la classification GHS, Cocamidopropyl betaine doit porter les mentions de danger suivantes : H318 (Provoque des lésions oculaires graves.), H401 (Działa toksycznie na organizmy wodne), H411 (Toxique pour les organismes aquatiques, entraîne des effets néfastes à long terme.).

Où acheter Cocamidopropyl betaine ?

Cocamidopropyl betaine est disponible dans notre boutique. Voir le produit : https://epchems.online/products/cocamidopropyl-betaine/

D'où proviennent les données chimiques de Cocamidopropyl betaine ?

Les données chimiques de Cocamidopropyl betaine proviennent de sources faisant autorité : PubChem (NIH), ChEMBL (EBI). PubChem CID: 20280. Conformes au règlement CLP (CE 1272/2008), disponibles sous licence CC-BY 4.0.

Cocamidopropyl betaine

Lauramidopropylbetaine

CAS 4292-10-8 · C₁₉H₃₈N₂O₃ · MW 342.5 g/mol

À propos de Cocamidopropyl betaine

Cocamidopropyl betaine est un composé chimique enregistré sous le numéro CAS 4292-10-8, de formule brute C₁₉H₃₈N₂O₃, et de masse molaire 342.5 g/mol.

La molécule contient 62 atomes reliés par 61 liaisons chimiques. Le nom systématique IUPAC complet de ce composé est 2-[3-(dodecanoylamino)propyl-dimethylazaniumyl]acetate. 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 = 5.4 (valeur positive, composé lipophile), surface polaire PSA = 69.2 Å², 1 donneurs et 3 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	C₁₉H₃₈N₂O₃
Masa molowa	342.5 g/mol
IUPAC	2-[3-(dodecanoylamino)propyl-dimethylazaniumyl]acetate
SMILES	`CCCCCCCCCCCC(=O)NCCC[N+](C)(C)CC(=O)[O-]`
InChIKey	`MRUAUOIMASANKQ-UHFFFAOYSA-N`
logP (XLogP3)	5.4
PSA	69.2 Å²
HBD / HBA	1 / 3
PubChem CID	CID 20280 ↗

Sécurité GHS

Sygnał: Niebezpieczeństwo

GHS05

GHS09

H318 — Powoduje poważne uszkodzenie oczu

H401 — Działa toksycznie na organizmy wodne

H411 — Działa toksycznie na organizmy wodne, powodując długotrwałe skutki

Littérature scientifique

Literatura naukowa

20 artykułów · 16 open access · Źródła: PubMed, OpenAlex, Semantic Scholar

📈 Timeline publikacji (20 artykułów)

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

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Difference and Potential of the Upward and Downward Sun-Induced Chlorophyll Fluorescence on Detecting Leaf Nitrogen Concentration in Wheat

Min Jia, Jie Zhu, Chunchen Ma et al. (2018) · Remote Sensing

Cytowania: 21Open AccessDOI ↗PDF ↗

Isobaric Vapor–Liquid-Equilibrium Data Measurement of Toluene with Ethyl Acetate, <i>n</i>-Propyl Acetate, Iso-propyl Acetate, Iso-butyl Acetate, and Iso-amyl Acetate: Experiments and Modeling

Dipak S. Sutar, Nilesh A. Mali, Pravin D. Ghuge (2025) · Journal of Chemical & Engineering Data

Cytowania: 4$ PaywallDOI ↗

Vapor−Liquid Equilibrium of Binary Mixtures Containing Methanol + Propyl Acetate, Methanol + Isopropyl Acetate, Vinyl Acetate + Propyl Acetate, and Vinyl Acetate + Isopropyl Acetate at 101.3 kPa

José M. Resa, Cristina González, Salomé Ortiz de Landaluce et al. (2001) · Journal of Chemical & Engineering Data

Cytowania: 27$ PaywallDOI ↗

Isobaric Vapor–Liquid Equilibria of Binary Systems (Propyl Acetate + 2-Methylbutan-1-ol), (Propyl Acetate + Hexan-1-ol), and (Propyl Acetate + Heptan-1-ol) at 101.3 kPa

Ye Qi, Yulong Liu, Jingwei Xie et al. (2014) · Journal of Chemical & Engineering Data

Cytowania: 4$ PaywallDOI ↗

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Low resistance NiO/β-Ga_{2}O_{3} heterojunction diodes grown via molecular beam epitaxy

Dagny Sacksteder, Anna Sacchi, Renae Gannon et al. (2026) · arXiv (2609.21901v1)

Open AccessPDF ↗

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Material chemical compositon impacts on the band alignments: Preliminary results on the 3D/2D perovskite interfaces

Philippe Baranek (2026) · arXiv (2609.21654v1)

Open AccessPDF ↗

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Orbital angular momentum accumulation in SrVO3 thin films

Julien Brehin, Montserrat X. Aguilar-Pujol, Dongwook Go et al. (2026) · arXiv (2609.21551v1)

Open AccessPDF ↗

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Dual-Sublattice Ferromagnetism Driven by Cooperative Double Exchange and Superexchange at NdNiO$_3$/CaMnO$_3$ Interfaces

Sharup Sheikh, Uditha M. Jayathilake, Michael Terilli et al. (2026) · arXiv (2609.21002v1)

Open AccessPDF ↗

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Modeling Dynamic Magnetic Response of Spinel Soft Ferrites with the Steepest-Entropy-Ascent Quantum Thermodynamics Formalism

Deepak Dhariwal, William T. Reynolds, Michael R. von Spakovsky (2026) · arXiv (2609.20062v1)

Open AccessPDF ↗

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Anharmonic Phonon Renormalization and Defect Tolerance of the Thermoelectric Power Factor in Monolayer SnSe

Nguyen Tran Gia Bao, Thang Bach Phan, Vu Thi Hanh Thu et al. (2026) · arXiv (2609.20019v1)

Open AccessPDF ↗

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Universality of the $1/9$ Magnetization Plateau and Quantum-Disordered States in the Kagome Family $\mathrm{Cs_8AB_3Ti_{12}F_{48}}$ ($A=\mathrm{Rb},\mathrm{Li}$; $B=\mathrm{K},\mathrm{Na}$)

Prena Chaudhary, Asiri Thennakoon, Tommy Park et al. (2026) · arXiv (2609.19572v1)

Open AccessPDF ↗

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Photoresponse properties of single-crystalline thick film based on high-entropy topological insulator (Bi3/4Sb1/4)2(Te2/5Se2/5S1/5)3

Alexei Vasilev, Marina Zhezhu, Oleg Ivanov (2026) · arXiv (2609.18771v1)

Open AccessDOI ↗PDF ↗

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High-Pressure Refractive Indices of NaCl, KCl, CaO, SrO, and MgO Reveal the Dependence of Anion Polarizability on Coordination Number and Bond Length

Konstantin Solovev, Xiangdong Li, Björn Winkler et al. (2026) · arXiv (2609.17290v1)

Open AccessPDF ↗

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Adsorbing Boundaries Stratify the Kinetics of Confined Colloidal Phase Separation

Kui Lin, Haiming Lu (2026) · arXiv (2609.16583v1)

Open AccessPDF ↗

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Effect of Near-surface Thermal Spikes on Radiation Hardness of Gallium Oxide

Tomás Fernández Bouvier, Umutcan Bektas, Alexander Azarov et al. (2026) · arXiv (2609.15429v1)

Open AccessPDF ↗

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Sodium Incorporation in CsPbBr$_{3-x}$I$_x$ Nanocrystal Electrodes: Lattice Contraction and the Suppression of Field-Driven Iodine Expulsion

Arun Kumar, Monojit Bag (2026) · arXiv (2609.13978v1)

Open AccessPDF ↗

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Heating of black-Si by microwaves at 2.45 GHz: effect of nano-needle orientation

Massimiliano Zamengo, Haoran Mu, Hsin-Hui Huang et al. (2026) · arXiv (2609.13683v1)

Open AccessPDF ↗

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$Ab$ $initio$ Study of Substitutional Defects in Li$_{3}$OCl Solid Electrolyte for Li-ion Batteries

Carson D. Ziemke, Naveed Naemi, Ha M. Nguyen et al. (2026) · arXiv (2609.12300v1)

Open AccessPDF ↗

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Low temperature thermodynamics of $S_{\mathrm{eff}}=1/2$ triangular lattice quantum spin liquid candidate TlYbS$_2$

Bishnu P. Belbase, Arjun Unnikrishnan, Piyush Chhallare et al. (2026) · arXiv (2609.11881v1)

Open AccessPDF ↗

Isobaric Vapor–Liquid Equilibria of Binary Systems (Propyl Acetate + <i>n</i>-Pentanol), (Propyl Acetate + 1-Methyl-1-butanol), and (Propyl Acetate + 3-Methyl-1-butanol) at 101.3 kPa

Jinli Zhang, Yulong Liu, Nan Meng et al. (2013) · Journal of Chemical & Engineering Data

Cytowania: 3$ PaywallDOI ↗

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

Synonymes

4292-10-8 · LAURAMIDOPROPYL BETAINE · lauramidopropylbetaine · Amphitol 20AB · N-Laurylamidopropyl-N,N-dimethylbetaine · MACKAM DAB · 23D6XVI233 · MACKAM LMB-F · NSC-8191 · CHEBI:63555 · NSC8191 · 1-Propanaminium, N-(carboxymethyl)-N,N-dimethyl-3-((1-oxododecyl)amino)-, inner salt · 1-Propanaminium, N-(carboxymethyl)-N,N-dimethyl-3-[(1-oxododecyl)amino]-, inner salt · RefChem:1088371 · 1-Propanaminium, N-(Carboxymethyl)-N,N-Dimethyl-3-((1-Oxododecyl)Amino)-

Sources des données

📊 PubChem CID 20280 — NIH
🔬 NIST WebBook — spektroskopia
🌐 Wikidata
💊 ChEMBL — bioaktywność

Acheter en boutique

Cocamidopropyl betaine →

Molécules apparentées

Benzoic acid CAS 65-85-0 · C7H6O2 Methyl acetate CAS 79-20-9 · C3H6O2 L-Valine CAS 72-18-4 · C5H11NO2 Iron oxide black CAS 12227-89-3 · Fe₃O₄ Dipropylene glycol monomethyl ether CAS 34590-94-8 · C7H16O3 N-Methyl-2-pyrrolidone CAS 872-50-4 · C5H9NO