Methyl diacetoacetate

二乙酰乙酸甲酯

Also known as: Methyl 2-acetyl-3-oxobutanoate, Methyl 2-acetylacetoacetate, Methyl diacetylacetate, Methyl=diacetylacetate, 2-Acetyl-3-oxobutyric acid methyl ester, Butanoic acid, 2-acetyl-3-oxo-, methyl ester, ACETOACETIC ACID,2-ACETYL-,METHYL ESTER, 2-acetyl-3-oxo-butyric acid methyl ester, 2-acetyl-3-oxobutanoic acid methyl

Methyl diacetoacetate (CAS 4619-66-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H16O4 and a molecular weight of 188.22100 g/mol. It is also known as Methyl 2-acetyl-3-oxobutanoate, Methyl 2-acetylacetoacetate and Methyl diacetylacetate. Key properties include a boiling point of 209ºC at 760 mmHg, a density of 1.112g/cm3 and a flash point of 82.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
4619-66-3
Jingsj CID
J-1055048-3
Molecular Formula
C9H16O4
Chinese Name
二乙酰乙酸甲酯
Molecular Weight
188.22100 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point209ºC at 760 mmHg
Density1.112g/cm3
Flash Point82.4ºC

Frequently Asked Questions

What is the CAS number of Methyl diacetoacetate?

The CAS number of Methyl diacetoacetate is 4619-66-3.

What are the molecular formula and molecular weight of Methyl diacetoacetate?

Methyl diacetoacetate has molecular formula C9H16O4 and molecular weight 188.22100 g/mol.

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

Last updated:

How to cite: Jingsj. "Methyl diacetoacetate (CAS 4619-66-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1055048-3 (accessed 2026-10-23).

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