alpha-Bromo-gamma-valerolactone
Also known as: 3-Bromo-5-methyloxolan-2-one, 2(3H)-Furanone, 3-bromodihydro-5-methyl-, 2-Bromo-4-hydroxyvaleric acid gamma-lactone, 3-Bromo-5-methyldihydro-2(3H)-furanone, 3-bromo-5-methyldihydrofuran-2(3H)-one, 3-Bromo-5-methyltetrahydrofuran-2-one, alpha-Bromo-gamma-valerolactone, mixture of cis and trans, α-Bromo-γ-valerolactone, γ-Methyl-α-bromobutyrolactone, NSC 91486
alpha-Bromo-gamma-valerolactone (CAS 25966-39-6) is a compound in the Esters category listed in the Jingsj chemical database. It has the molecular formula C5H7BrO2 and a molecular weight of 179.01200 g/mol. Key properties include a boiling point of 254.1ºC at 760mmHg, a density of 1.618g/cm3 and a flash point of 107.5ºC. It is classified under GHS with signal word Danger and hazard statements H314 — Causes severe skin burns and eye damage and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 25966-39-6
- Jingsj CID
- J-49940-6
- Molecular Formula
- C5H7BrO2
- Molecular Weight
- 179.01200 g/mol
- Category
- Esters
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 254.1ºC at 760mmHg |
|---|---|
| Density | 1.618g/cm3 |
| Flash Point | 107.5ºC |
| Exact Mass | 177.96300 |
| PSA | 26.30000 |
| LogP | 1.08530 |
| Vapor Pressure | 0.0175mmHg at 25°C |
| Refractive Index | n20/D 1.493(lit.) |
GHS Safety & Compliance
- H314 — Causes severe skin burns and eye damage
- H335 — May cause respiratory 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 alpha-Bromo-gamma-valerolactone?
The CAS number of alpha-Bromo-gamma-valerolactone is 25966-39-6.
What are the molecular formula and molecular weight of alpha-Bromo-gamma-valerolactone?
alpha-Bromo-gamma-valerolactone has molecular formula C5H7BrO2 and molecular weight 179.01200 g/mol.
Is alpha-Bromo-gamma-valerolactone hazardous?
alpha-Bromo-gamma-valerolactone has GHS signal word Danger and hazard statements H314 — Causes severe skin burns and eye damage; H335 — May cause respiratory irritation.
What are the upstream and downstream products of alpha-Bromo-gamma-valerolactone?
For alpha-Bromo-gamma-valerolactone, Upstream Products: γ-Valerolactone, alpha-methyl-gamma-butyrolactone, Benzyl alcohol; Downstream Products: γ-Valerolactone, alpha-Methylene-gamma-valerolactone (stabilized with HQ).
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "alpha-Bromo-gamma-valerolactone (CAS 25966-39-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-49940-6 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.