Methyl 3-bromo-2-oxo-2H-pyran-5-carboxylate
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. 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-1162421-8
- Molecular Formula
- C7H5BrO4
- Molecular Weight
- 233.016 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 285.4±40.0 °C at 760 mmHg |
|---|---|
| Density | 1.8±0.1 g/cm3 |
| Flash Point | 126.4±27.3 °C |
| Exact Mass | 231.937119 |
| PSA | 56.51000 |
| LogP | -0.30 |
| Vapor Pressure | 0.0±0.6 mmHg at 25°C |
| Refractive Index | 1.579 |
| Storage Conditions | 2-8°C |
Customs & Trade Information
| HS Code | 2932209090 |
|---|---|
| Summary | 2932209090. other lactones. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
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.
What are the upstream and downstream products of Methyl 3-bromo-2-oxo-2H-pyran-5-carboxylate?
For Methyl 3-bromo-2-oxo-2H-pyran-5-carboxylate, Upstream Products: Methyl coumalate, Coumalic acid, Methanol; Downstream Products: Methyl 5-bromo-6-hydroxynicotinate, 5-Bromo-6-hydroxynicotinic acid, furan-2,4-dicarboxylic acid.
Data compiled from public chemical databases such as PubChem 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-1162421-8 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.