1-Benzyl-2-pyrrolidinone
Also known as: 1-Benzylpyrrolidin-2-one, N-Benzylpyrrolidin-2-one, N-Benzyl-2-pyrrolidone, 1-Benzyl-2-pyrrolidone, N-Benzylbutyrolactam, 2-Pyrrolidinone, 1-(phenylmethyl)-, 1-Benzylazacyclopentan-2-one, NSC 30184
1-Benzyl-2-pyrrolidinone (CAS 5291-77-0) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C11H13NO and a molecular weight of 175.227 g/mol. Key properties include a melting point of 154 - 156ºC, a boiling point of 343.0±21.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 141.3±12.6 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 5291-77-0
- Jingsj CID
- J-1990069-7
- Molecular Formula
- C11H13NO
- Molecular Weight
- 175.227 g/mol
- Category
- Ketones
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 154 - 156ºC |
|---|---|
| Boiling Point | 343.0±21.0 °C at 760 mmHg |
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 141.3±12.6 °C |
| Exact Mass | 175.099716 |
| PSA | 20.31000 |
| LogP | 1.25 |
| Vapor Pressure | 0.0±0.8 mmHg at 25°C |
| Refractive Index | 1.578 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
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 1-Benzyl-2-pyrrolidinone?
The CAS number of 1-Benzyl-2-pyrrolidinone is 5291-77-0.
What are the molecular formula and molecular weight of 1-Benzyl-2-pyrrolidinone?
1-Benzyl-2-pyrrolidinone has molecular formula C11H13NO and molecular weight 175.227 g/mol.
Is 1-Benzyl-2-pyrrolidinone hazardous?
1-Benzyl-2-pyrrolidinone has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
What are the upstream and downstream products of 1-Benzyl-2-pyrrolidinone?
For 1-Benzyl-2-pyrrolidinone, Upstream Products: 2-Pyrrolidinone, Benzaldehyde, Benzylamine; Downstream Products: 1,2-Dimethoxybenzene, 2-Pyrrolidinone, 1-Benzyl-2,5-pyrrolidinedione.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1-Benzyl-2-pyrrolidinone (CAS 5291-77-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1990069-7 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.