1-Phenyl-2-pyrrolidinone
Also known as: N-Phenyl-2-pyrrolidinone, N-Phenyl-2-pyrrolidone, N-Phenylbutyrolactam, N-Phenylbutyrolactame, Phenylpyrrolidone, 1-Phenylpyrrolidin-2-one, 1-Phenyl-2-pyrrolidone, 1-phenylazacyclopentan-2-one, 2-Pyrrolidinone, 1-phenyl-, N-Phenylpyrrolidinone, VITAS-BB TBB000660, MFCD00003192, EINECS 225-069-6
1-Phenyl-2-pyrrolidinone (CAS 4641-57-0) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C10H11NO and a molecular weight of 161.20 g/mol. Key properties include a melting point of 67-69 °C(lit.), a boiling point of 355.5±11.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 174.7±10.5 °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.
- 4641-57-0
- Jingsj CID
- J-26594-1
- Molecular Formula
- C10H11NO
- Molecular Weight
- 161.20 g/mol
- Category
- Ketones
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 67-69 °C(lit.) |
|---|---|
| Boiling Point | 355.5±11.0 °C at 760 mmHg |
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 174.7±10.5 °C |
| Exact Mass | 161.084061 |
| PSA | 20.31000 |
| LogP | 1.39 |
| 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
Activity & Biological Data
| Additional Information | [1]. Patkina N, et al. Some psychotropic effects of phenibut and phenylpyrrolidone. Trudy Volgogradskogo Gosudarstvennogo Meditsinskogo Instituta (1979), 31(3), 63-6. [2]. Kovalev GV, et al. Effect of γ-aminobutyric acid derivatives on baroreceptor reflexes in nonanesthetized animals. Russian. 1980, (VINITI 1311-80), 10 pp. |
|---|
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-Phenyl-2-pyrrolidinone?
The CAS number of 1-Phenyl-2-pyrrolidinone is 4641-57-0.
What are the molecular formula and molecular weight of 1-Phenyl-2-pyrrolidinone?
1-Phenyl-2-pyrrolidinone has molecular formula C10H11NO and molecular weight 161.20 g/mol.
Is 1-Phenyl-2-pyrrolidinone hazardous?
1-Phenyl-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-Phenyl-2-pyrrolidinone?
For 1-Phenyl-2-pyrrolidinone, Upstream Products: 2-Pyrrolidinone, Iodobenzene, Bromobenzene; Downstream Products: 4-[(2,4-Dinitrophenyl)amino]butanoic acid, 1-Phenylpyrrolidine, 1-Phenylpyrrole.
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-Phenyl-2-pyrrolidinone (CAS 4641-57-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-26594-1 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.