(S)-4-Hydroxy-2-pyrrolidinone

(S)-4-羟基-2-吡咯酮

Also known as: (4S)-4-Hydroxypyrrolidin-2-one, (4S)-4-hydroxy-2-pyrrolidinone, (S)-(-)-4-Hydroxy-2-pyrrolidinone, (S)-(-)-4-Hydroxy-2-pyrrolidone, (S)-4-Hydroxy-pyrrolidine-2-one, (S)-β-hydroxy-γ-butyrolactam, 2-Pyrrolidinone, 4-hydroxy-, (4S)-, 2-Pyrrolidinone, 4-hydroxy-, (S)-, 4-Hydroxy-2-pyrrolidinone, 4-Hydroxypyrrolidin-2-one, 4-Hydroxypyrrolidine-2-one, 4-hydroxy-2-oxopyrrolidine, 4-hydroxy-2-pyrrolidone, MFCD00273370

(S)-4-Hydroxy-2-pyrrolidinone (CAS 68108-18-9) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C4H7NO2 and a molecular weight of 101.10 g/mol. It is also known as (4S)-4-Hydroxypyrrolidin-2-one, (4S)-4-hydroxy-2-pyrrolidinone and (S)-(-)-4-Hydroxy-2-pyrrolidinone. Key properties include a melting point of 156-160 °C, a boiling point of 363.6±35.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 173.7±25.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
68108-18-9
Jingsj CID
J-1993300-5
Molecular Formula
C4H7NO2
Chinese Name
(S)-4-羟基-2-吡咯酮
Molecular Weight
101.10 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Melting Point156-160 °C
Boiling Point363.6±35.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point173.7±25.9 °C

Frequently Asked Questions

What is the CAS number of (S)-4-Hydroxy-2-pyrrolidinone?

The CAS number of (S)-4-Hydroxy-2-pyrrolidinone is 68108-18-9.

What are the molecular formula and molecular weight of (S)-4-Hydroxy-2-pyrrolidinone?

(S)-4-Hydroxy-2-pyrrolidinone has molecular formula C4H7NO2 and molecular weight 101.10 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "(S)-4-Hydroxy-2-pyrrolidinone (CAS 68108-18-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1993300-5 (accessed 2026-10-22).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.