Methyl 4-chloroacetoacetate

4-氯乙酰乙酸甲酯

Also known as: Methyl 4-chloro-3-oxobutanoate, Methyl 4-chloro-3-oxo-butanoate, Methyl gamma-chloroacetoacetate, Methyl omega-chloroacetoacetate, 4-Chloroacetoacetic acid methyl ester, Oxiracetam Impurity 20

Methyl 4-chloroacetoacetate (CAS 32807-28-6) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C5H7ClO3 and a molecular weight of 139.152 g/mol. It is also known as Methyl 4-chloro-3-oxobutanoate, Methyl 4-chloro-3-oxo-butanoate and Methyl gamma-chloroacetoacetate. Key properties include a melting point of 14-16 °C, a boiling point of 287.8±23.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 127.9±22.6 °C. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
32807-28-6
Jingsj CID
J-10222-7
Molecular Formula
C5H7ClO3
Chinese Name
4-氯乙酰乙酸甲酯
Molecular Weight
139.152 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point14-16 °C
Boiling Point287.8±23.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point127.9±22.6 °C

GHS Safety & Compliance

Acute ToxicitySignal word: Danger

Frequently Asked Questions

What is the CAS number of Methyl 4-chloroacetoacetate?

The CAS number of Methyl 4-chloroacetoacetate is 32807-28-6.

What are the molecular formula and molecular weight of Methyl 4-chloroacetoacetate?

Methyl 4-chloroacetoacetate has molecular formula C5H7ClO3 and molecular weight 139.152 g/mol.

Is Methyl 4-chloroacetoacetate hazardous?

Methyl 4-chloroacetoacetate has GHS signal word Danger.

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

Last updated:

How to cite: Jingsj. "Methyl 4-chloroacetoacetate (CAS 32807-28-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-10222-7 (accessed 2026-10-22).

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