(S)-(+)-5-(Hydroxymethyl)-2-pyrrolidinone
Also known as: L-Pyroglutaminol, (5S)-5-(Hydroxymethyl)pyrrolidin-2-one, (S)-5-(Hydroxymethyl)-2-pyrrolidinone, H-L-Pyr-ol
(S)-(+)-5-(Hydroxymethyl)-2-pyrrolidinone (CAS 17342-08-4) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C5H9NO2 and a molecular weight of 115.131 g/mol. Key properties include a melting point of 79-80 °C(lit.), a boiling point of 346.0±15.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 163.0±20.4 °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.
- 17342-08-4
- Jingsj CID
- J-1377-4
- Molecular Formula
- C5H9NO2
- Molecular Weight
- 115.131 g/mol
- Category
- Alcohols
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 79-80 °C(lit.) |
|---|---|
| Boiling Point | 346.0±15.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 163.0±20.4 °C |
| Exact Mass | 115.063332 |
| PSA | 49.33000 |
| LogP | -2.49 |
| Vapor Pressure | 0.0±1.7 mmHg at 25°C |
| Refractive Index | 1.476 |
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 (S)-(+)-5-(Hydroxymethyl)-2-pyrrolidinone?
The CAS number of (S)-(+)-5-(Hydroxymethyl)-2-pyrrolidinone is 17342-08-4.
What are the molecular formula and molecular weight of (S)-(+)-5-(Hydroxymethyl)-2-pyrrolidinone?
(S)-(+)-5-(Hydroxymethyl)-2-pyrrolidinone has molecular formula C5H9NO2 and molecular weight 115.131 g/mol.
Is (S)-(+)-5-(Hydroxymethyl)-2-pyrrolidinone hazardous?
(S)-(+)-5-(Hydroxymethyl)-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 (S)-(+)-5-(Hydroxymethyl)-2-pyrrolidinone?
For (S)-(+)-5-(Hydroxymethyl)-2-pyrrolidinone, Upstream Products: Methyl L-pyroglutamate, Ethyl L-pyroglutamate, L-Pyroglutamic acid; Downstream Products: (5S)-5-[[[(tert-Butyl)dimethylsilyl]oxy]methyl]pyrrolidin-2-one, (S)-(+)-5-(Hydroxymethyl)-2-pyrrolidinone p-toluenesulfonate, Swainsonine.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "(S)-(+)-5-(Hydroxymethyl)-2-pyrrolidinone (CAS 17342-08-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1377-4 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.