3,4-dibromo-5H-furan-2-one
Also known as: 3,4-Dibromo-2(5H)-furanone, 3,4-Dibromofuran-2(5H)-one, 2(5H)-Furanone, 3,4-dibromo-, 3,4-dibromo-2H-furan-5-one, 3,4-Dibromo-2(5H)-furanone 97%, 3,4-Dibromofuran-2(5H)-on
3,4-dibromo-5H-furan-2-one (CAS 149418-41-7) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C4H2Br2O2 and a molecular weight of 241.86500 g/mol. Key properties include a melting point of 90 - 94 ℃, a boiling point of 315ºC at 760 mmHg, a density of 2.566g/cm3 and a flash point of 144.3ºC. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H317 — May cause an allergic skin reaction and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 149418-41-7
- Jingsj CID
- J-1495473-5
- Molecular Formula
- C4H2Br2O2
- Molecular Weight
- 241.86500 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 90 - 94 ℃ |
|---|---|
| Boiling Point | 315ºC at 760 mmHg |
| Density | 2.566g/cm3 |
| Flash Point | 144.3ºC |
| Exact Mass | 239.84200 |
| PSA | 26.30000 |
| LogP | 1.54460 |
| Vapor Pressure | 0.000449mmHg at 25°C |
| Refractive Index | 1.673 |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H317 — May cause an allergic skin reaction
- H319 — Causes serious eye irritation
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-5H-furan-2-one?
The CAS number of 3,4-dibromo-5H-furan-2-one is 149418-41-7.
What are the molecular formula and molecular weight of 3,4-dibromo-5H-furan-2-one?
3,4-dibromo-5H-furan-2-one has molecular formula C4H2Br2O2 and molecular weight 241.86500 g/mol.
Is 3,4-dibromo-5H-furan-2-one hazardous?
3,4-dibromo-5H-furan-2-one has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H317 — May cause an allergic skin reaction; H319 — Causes serious eye irritation.
What are the upstream and downstream products of 3,4-dibromo-5H-furan-2-one?
For 3,4-dibromo-5H-furan-2-one, Upstream Products: 3,4-Dibromo-5-hydroxyfuran-2(5H)-one, 2,3-Dibromo-4-oxobut-2-enoic acid, trans-2,3-dibromo-2-butene-1,4-diol; Downstream Products: 2,2'-dimethoxybiphenyl, 2,3-Dibromo-4-oxobut-2-enoic acid, Dibromomaleic 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-5H-furan-2-one (CAS 149418-41-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1495473-5 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.