Methyl 3-bromo-2-oxo-2H-pyran-5-carboxylate

3-溴-2-氧代-2H-吡喃-5-羧酸甲酯

Also known as: 2H-Pyran-5-carboxylic acid, 3-bromo-2-oxo-, methyl ester, 3-bromocoumalic acid methyl ester, 3-bromo methyl coumalate, methyl 3-bromocoumalate, methyl 5-bromo-6-oxopyran-3-carboxylate, 5-bromo-6-oxo-6H-pyran-3-carboxylic acid methyl ester

Methyl 3-bromo-2-oxo-2H-pyran-5-carboxylate (CAS 42933-07-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H5BrO4 and a molecular weight of 233.016 g/mol. It is also known as 2H-Pyran-5-carboxylic acid, 3-bromo-2-oxo-, methyl ester, 3-bromocoumalic acid methyl ester and 3-bromo methyl coumalate. Key properties include a boiling point of 285.4±40.0 °C at 760 mmHg, a density of 1.8±0.1 g/cm3 and a flash point of 126.4±27.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
42933-07-3
Jingsj CID
J-1162421-7
Molecular Formula
C7H5BrO4
Chinese Name
3-溴-2-氧代-2H-吡喃-5-羧酸甲酯
Molecular Weight
233.016 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point285.4±40.0 °C at 760 mmHg
Density1.8±0.1 g/cm3
Flash Point126.4±27.3 °C

Frequently Asked Questions

What is the CAS number of Methyl 3-bromo-2-oxo-2H-pyran-5-carboxylate?

The CAS number of Methyl 3-bromo-2-oxo-2H-pyran-5-carboxylate is 42933-07-3.

What are the molecular formula and molecular weight of Methyl 3-bromo-2-oxo-2H-pyran-5-carboxylate?

Methyl 3-bromo-2-oxo-2H-pyran-5-carboxylate has molecular formula C7H5BrO4 and molecular weight 233.016 g/mol.

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

Last updated:

How to cite: Jingsj. "Methyl 3-bromo-2-oxo-2H-pyran-5-carboxylate (CAS 42933-07-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1162421-7 (accessed 2026-10-22).

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