1-(2-Hydroxyethyl)-2-pyrrolidinone
Also known as: 1-(2-Hydroxyethyl)-2-pyrrolidone, 1-(2-hydroxyethyl)pyrrolidin-2-one, 2-Pyrrolidinone, 1-(2-hydroxyethyl)-, 2-Pyrrolidinone,1-(2-hydroxyethyl), N-(2-Hydroxyethyl)-2-pyrrolidone, N-(2-hydroxyethyl)-2-oxo-pyrrolidine, N-(2-hydroxyethyl)-2-pyrrolidinone, N-(2-hydroxyethyl)-pyrrolidinone, N-2-Hydroxyethylpyrrolidin-2-one
1-(2-Hydroxyethyl)-2-pyrrolidinone (CAS 3445-11-2) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C6H11NO2 and a molecular weight of 129.157 g/mol. Key properties include a melting point of 19-21°C, a boiling point of 296.0±13.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 132.8±19.8 °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.
- 3445-11-2
- Jingsj CID
- J-45729-4
- Molecular Formula
- C6H11NO2
- Molecular Weight
- 129.157 g/mol
- Category
- Ketones
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 19-21°C |
|---|---|
| Boiling Point | 296.0±13.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 132.8±19.8 °C |
| Exact Mass | 129.078979 |
| PSA | 40.54000 |
| LogP | -1.02 |
| Vapor Pressure | 0.0±1.4 mmHg at 25°C |
| Refractive Index | 1.505 |
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-(2-Hydroxyethyl)-2-pyrrolidinone?
The CAS number of 1-(2-Hydroxyethyl)-2-pyrrolidinone is 3445-11-2.
What are the molecular formula and molecular weight of 1-(2-Hydroxyethyl)-2-pyrrolidinone?
1-(2-Hydroxyethyl)-2-pyrrolidinone has molecular formula C6H11NO2 and molecular weight 129.157 g/mol.
Is 1-(2-Hydroxyethyl)-2-pyrrolidinone hazardous?
1-(2-Hydroxyethyl)-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-(2-Hydroxyethyl)-2-pyrrolidinone?
For 1-(2-Hydroxyethyl)-2-pyrrolidinone, Upstream Products: Methyl 2-oxo-1-pyrrolidineacetate, Ethanolamine, Methyl 4-oxobutanoate; Downstream Products: 2-Pyrrolidinone, 1-Ethyl-2-pyrrolidinone, N-Vinyl-2-pyrrolidone.
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-(2-Hydroxyethyl)-2-pyrrolidinone (CAS 3445-11-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-45729-4 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.