3,4-Dibromo-5-hydroxyfuran-2(5H)-one
Also known as: Mucobromic acid, 3,4-Dibromo-5-hydroxy-2(5H)-furanone, Dibromomalealdehydic acid, (Z)-2,3-Dibromo-4-oxobut-2-enoic acid, 2,3-Dibromo-4-oxobut-2-enoic acid, 2(5H)-Furanone, 3,4-dibromo-5-hydroxy-
3,4-Dibromo-5-hydroxyfuran-2(5H)-one (CAS 766-38-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C4H2Br2O3 and a molecular weight of 257.865 g/mol. Key properties include a boiling point of 408.9±45.0 °C at 760 mmHg, a density of 2.8±0.1 g/cm3 and a flash point of 201.1±28.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 766-38-1
- Jingsj CID
- J-1512908-6
- Molecular Formula
- C4H2Br2O3
- Molecular Weight
- 257.865 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 408.9±45.0 °C at 760 mmHg |
|---|---|
| Density | 2.8±0.1 g/cm3 |
| Flash Point | 201.1±28.7 °C |
| Exact Mass | 255.837051 |
| PSA | 46.53000 |
| LogP | 0.07 |
| Vapor Pressure | 0.0±2.2 mmHg at 25°C |
| Refractive Index | 1.744 |
| 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 3,4-Dibromo-5-hydroxyfuran-2(5H)-one?
The CAS number of 3,4-Dibromo-5-hydroxyfuran-2(5H)-one is 766-38-1.
What are the molecular formula and molecular weight of 3,4-Dibromo-5-hydroxyfuran-2(5H)-one?
3,4-Dibromo-5-hydroxyfuran-2(5H)-one has molecular formula C4H2Br2O3 and molecular weight 257.865 g/mol.
What are the upstream and downstream products of 3,4-Dibromo-5-hydroxyfuran-2(5H)-one?
For 3,4-Dibromo-5-hydroxyfuran-2(5H)-one, Upstream Products: Furfural; Downstream Products: Sodium nitromalonaldehyde monohydrate, 5-Bromopyrimidine, 5-bromo-2-cyclopropylpyrimidine-4-carboxylic 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. "3,4-Dibromo-5-hydroxyfuran-2(5H)-one (CAS 766-38-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1512908-6 (accessed 2026-11-07).
Data for reference only; verify product details with suppliers before purchase.