3-bromopyrrolidin-2-one
Also known as: 2-Pyrrolidinone, 3-bromo-, 3-Bromo-2-pyrrolidone, 3-Bromo-2-pyrrolidinone, alpha-Bromobutyrolactam
3-bromopyrrolidin-2-one (CAS 40557-20-8) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C4H6BrNO and a molecular weight of 164.00100 g/mol. Key properties include a boiling point of 305.787ºC at 760 mmHg, a density of 1.715 g/cm3 and a flash point of 138.735ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 40557-20-8
- Jingsj CID
- J-1496458-0
- Molecular Formula
- C4H6BrNO
- Molecular Weight
- 164.00100 g/mol
- Category
- Ketones
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 305.787ºC at 760 mmHg |
|---|---|
| Density | 1.715 g/cm3 |
| Flash Point | 138.735ºC |
| Exact Mass | 162.96300 |
| PSA | 32.59000 |
| LogP | 0.54570 |
Customs & Trade Information
| HS Code | 2933790090 |
|---|---|
| Summary | 2933790090. other lactams. VAT:17.0%. Tax rebate rate:9.0%. . MFN tariff:9.0%. General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of 3-bromopyrrolidin-2-one?
The CAS number of 3-bromopyrrolidin-2-one is 40557-20-8.
What are the molecular formula and molecular weight of 3-bromopyrrolidin-2-one?
3-bromopyrrolidin-2-one has molecular formula C4H6BrNO and molecular weight 164.00100 g/mol.
What are the upstream and downstream products of 3-bromopyrrolidin-2-one?
For 3-bromopyrrolidin-2-one, Upstream Products: 4-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)butanoic 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-bromopyrrolidin-2-one (CAS 40557-20-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1496458-0 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.