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.

What is Ethyl Methyl Carbonate?

Ethyl Methyl Carbonate is a chemical compound registered under CAS number 623-53-0. Molecular formula: C4H8O3. Molar mass: 104.10 g/mol. IUPAC: ethyl methyl carbonate.

What is the CAS number of Ethyl Methyl Carbonate?

The CAS number of Ethyl Methyl Carbonate is 623-53-0 — a unique Chemical Abstracts Service (CAS) identifier.

What is the molecular formula of Ethyl Methyl Carbonate?

Molecular formula: C4H8O3. Molar mass: 104.10 g/mol. logP (XLogP3): 0.9. PSA: 35.5 Å².

What are the GHS hazards of Ethyl Methyl Carbonate?

Under the GHS classification, Ethyl Methyl Carbonate must be labelled with the following hazard statements: H225 (Highly flammable liquid and vapour).

Where can I buy Ethyl Methyl Carbonate?

Ethyl Methyl Carbonate is available in our shop. View the product: https://epchems.online/products/ethyl-methyl-carbonate/

Where does the chemical data for Ethyl Methyl Carbonate come from?

Chemical data for Ethyl Methyl Carbonate comes from authoritative sources: PubChem (NIH). PubChem CID: 522046. Compliant with the CLP Regulation (EC 1272/2008), available under the CC-BY 4.0 licence.

Ethyl Methyl Carbonate

CAS 623-53-0 · C₄H₈O₃ · MW 104.10 g/mol

About Ethyl Methyl Carbonate

Ethyl Methyl Carbonate is a chemical compound registered under number CAS 623-53-0, with the molecular formula C₄H₈O₃, and a molar mass of 104.10 g/mol.

The molecule contains 15 atoms connected by 14 chemical bonds. The full systematic IUPAC name of this compound is ethyl methyl carbonate. The interactive 3D model above lets you view the spatial arrangement of the atoms — you can rotate it with the mouse, zoom with the scroll wheel, and switch between skeletal / Ball & Stick / Space Fill visualization modes.

In terms of physicochemical properties, the partition coefficient logP = 0.9 (positive value, a lipophilic compound), polar surface area PSA = 35.5 Å², 0 donors and 3 hydrogen bond acceptors. These parameters are key when assessing bioavailability and interaction with biomolecules.

Chemical data for this compound comes from PubChem (NIH NLM NCBI), one of the world's largest chemical databases. All information is updated automatically and enriched with GHS hazard statement translations compliant with the CLP Regulation (EC 1272/2008). The widget above may be used for educational, research and commercial purposes.

Physicochemical properties

Wzór sumaryczny	C₄H₈O₃
Masa molowa	104.10 g/mol
IUPAC	ethyl methyl carbonate
SMILES	`CCOC(=O)OC`
InChIKey	`JBTWLSYIZRCDFO-UHFFFAOYSA-N`
logP (XLogP3)	0.9
PSA	35.5 Å²
HBD / HBA	0 / 3
PubChem CID	CID 522046 ↗

GHS safety

Sygnał: Niebezpieczeństwo

GHS02

H225 — Wysoce łatwopalna ciecz i pary

Scientific literature

Literatura naukowa

20 artykułów · 8 open access · Źródła: PubMed, OpenAlex, Semantic Scholar

📈 Timeline publikacji (20 artykułów)

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

Fine-Tuning Electron-Donor Capability in the Basic Anion of Poly(ionic liquid) Frameworks for Revolutionizing Catalytic Synthesis of Ethyl Methyl Carbonate with Both Ultrahigh Catalytic Activity and Selectivity.

et al. (2024)

Cytowania: 1$ PaywallDOI ↗PubMed ↗

Catalyst design for sustainable and directional ethyl methyl carbonate synthesis.

et al. (2026)

$ PaywallDOI ↗PubMed ↗

Regulating the Lipophilicity of an Acid-Base Bifunctional Catalyst to Enhance the Performance of Catalytic Synthesis of Ethyl Methyl Carbonate.

et al. (2025)

$ PaywallDOI ↗PubMed ↗

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Solvation Effects on the Dielectric Constant of 1 M LiPF6 in Ethylene Carbonate: Ethyl Methyl Carbonate 3:7

Julian Self, Nathan T. Hahn, Kristin A. Persson (2020)

Open AccessDOI ↗PDF ↗

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Vapor Equilibrium Data for the Binary Mixtures of Dimethyl Carbonate and Ethyl Methyl Carbonate in Compressed Carbon Dioxide

Román-Ramírez, Luis A.; id_orcid, Shiva J. Jethwa, Luis A. Román-Ramírez et al. (2023) · Springer Science and Business Media LLC

Open AccessDOI ↗PDF ↗

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Three-Dimensional Ordered Porous SnO<sub>2</sub> Nanostructures Derived from Polystyrene Sphere Templates for Ethyl Methyl Carbonate Detection in Battery Safety Applications.

et al. (2025)

Cytowania: 1Open AccessDOI ↗PubMed ↗PDF ↗

Crucial Roles of Ethyl Methyl Carbonate in Lithium-Ion and Dual-Ion Batteries: A Review.

et al. (2024)

Cytowania: 3$ PaywallDOI ↗PubMed ↗

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Effect of Preparation Method on the Catalytic Property of Calcined Ca-Al Hydrotalcite for the Synthesis of Ethyl Methyl Carbonate.

(2021)

Cytowania: 3Open AccessDOI ↗PubMed ↗PDF ↗

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Heat Capacity of Ethylene Carbonate and Ethyl Methyl Carbonate for the Liquid Phase at Elevated Temperatures

Philipp Finster, Judith Jung, Magnus Rohde et al. (2024)

Open AccessDOI ↗PDF ↗

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Experimental and Numerical Study of the Impact of Pressure During the Pyrolysis of Diethyl Carbonate and Ethyl Methyl Carbonate

Claire M. Grégoire, Eric L. Petersen, Olivier Mathieu (2025) · Batteries

Open AccessDOI ↗PDF ↗

Nitrogen-doped carbon supported ZnO as highly stable heterogeneous catalysts for transesterification synthesis of ethyl methyl carbonate.

et al. (2021)

Cytowania: 3$ PaywallDOI ↗PubMed ↗

Isobaric Vapor-Liquid Equilibrium for Binary Systems of Ethyl Methyl Carbonate (and Diethyl Carbonate) + Ethyl Propionate, + Methyl Propionate at 101.3 kPa

Young Min Cho, Dong June Ahn (2025) · Korean Journal of Chemical Engineering

$ PaywallDOI ↗

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Atmospheric Oxidation of Ethyl Methyl Carbonate: Kinetics and Reaction Mechanism

Guido Noe Rimondino, Jesús Alaberto Vila, Fabio Ernesto Malanca (2023)

Open AccessDOI ↗PDF ↗

LiPF6 and lithium difluoro(oxalato)borate/ethylene carbonate + dimethyl carbonate + ethyl(methyl)carbonate electrolyte for Li4Ti5O12 anode

Hongming Zhou, Zhenqi Fang, Jian Li (2013) · Journal of Power Sources

Cytowania: 32$ PaywallDOI ↗

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Effect of Sodium Chloride as Electrolyte Additive on the Performance of Mesocarbon Microbeads Electrode

Borong Wu, Yonghuan Ren, Daobin Mu et al. (2013) · International Journal of Electrochemical Science

Open AccessDOI ↗PDF ↗

Ethylene Carbonate-Free Electrolytes Based on Ethyl Methyl Carbonate for High-Voltage LiCoO2/Si-Graphite Lithium-Ion Batteries

$ PaywallDOI ↗

Anion Storage Behavior of Graphite Electrodes in LiBF4/Sulfone/Ethyl Methyl Carbonate Solutions

$ PaywallDOI ↗

Unlocking the True Capability of Graphite-Based Dual-Ion Batteries with Ethyl Methyl Carbonate Electrolyte

$ PaywallDOI ↗

Synergetic Effect of Ethyl Methyl Carbonate and Trimethyl Phosphate on BF4 Intercalation into a Graphite Electrode

$ PaywallDOI ↗

Regulating the Lipophilicity of an AcidBase Bifunctional Catalyst to Enhance the Performance of Catalytic Synthesis of Ethyl Methyl Carbonate

$ PaywallDOI ↗

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

Synonyms

Ethyl methyl carbonate · 623-53-0 · Carbonic acid, ethyl methyl ester · Ester solvent · Methyl Ethyl Carbonate · Ethoxyacetic acid, methyl ester · methylethylcarbonate · UNII-OU358HAE25 · OU358HAE25 · C2H5OCOOCH3 · Carbonic acid, ethyl-, methyl ester · ETHYL METHYL CARBONTE · RefChem:138988 · DTXCID9043304 · 433-480-9

Data sources

📊 PubChem CID 522046 — NIH
🔬 NIST WebBook — spektroskopia
🌐 Wikidata
💊 ChEMBL — bioaktywność

Buy in the shop

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Related molecules

Sodium Nitrate CAS 7631-99-4 · NaNO₃ L-Alanine CAS 56-41-7 · C3H7NO2 Tert-Butanol CAS 75-65-0 · C4H10O Tripropylene glycol monobutyl ether CAS 55934-93-5 · C13H28O4 2-Butanone CAS 78-93-3 · C4H8O Tetrahydrofuran CAS 109-99-9 · C4H8O