methyl (2E)-4-oxopent-2-enoate

反-Β-乙酰基丙烯酸甲酯

Also known as: Methyl trans-4-oxo-2-pentenoate, Methyl (E)-4-oxopent-2-enoate, Acetylacrylic acid methyl ester, Methyl acetylacrylate, Methyl trans-β-acetylacrylate, methyl-trans-4-oxo-2-pentenoate, trans-β-acetylacrylic acid methyl ester

methyl (2E)-4-oxopent-2-enoate (CAS 2833-24-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H8O3 and a molecular weight of 128.12600 g/mol. It is also known as Methyl trans-4-oxo-2-pentenoate, Methyl (E)-4-oxopent-2-enoate and Acetylacrylic acid methyl ester. Key property: a melting point of 59-61 â„ƒ(lit.). GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 2833-24-1
Jingsj CID: J-1966439-8
Molecular Formula: C₆H₈O₃
Chinese Name: 反-Β-乙酰基丙烯酸甲酯
Molecular Weight: 128.12600 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	59-61 â„ƒ(lit.)

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of methyl (2E)-4-oxopent-2-enoate?

The CAS number of methyl (2E)-4-oxopent-2-enoate is 2833-24-1.

What are the molecular formula and molecular weight of methyl (2E)-4-oxopent-2-enoate?

methyl (2E)-4-oxopent-2-enoate has molecular formula C6H8O3 and molecular weight 128.12600 g/mol.

Is methyl (2E)-4-oxopent-2-enoate hazardous?

methyl (2E)-4-oxopent-2-enoate has GHS signal word Warning.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "methyl (2E)-4-oxopent-2-enoate (CAS 2833-24-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1966439-8 (accessed 2026-10-24).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.