(S)-(+)-5-(Hydroxymethyl)-2-pyrrolidinone p-toluenesulfonate
Also known as: (S)-5-(Hydroxymethyl)-2-pyrrolidinone p-toluenesulfonate, (S)-(5-Oxopyrrolidin-2-yl)methyl 4-methylbenzenesulfonate, 4-Methylbenzenesulfonic acid (S)-(5-oxopyrrolidin-2-yl)methyl ester, (S)-Toluene-4-sulfonic acid 5-oxopyrrolidin-2-ylmethyl ester, MFCD00274229, (S)-5-Tosyloxymethyl-2-pyrrolidinone, (-)-L-Pyroglutamol p-toluenesulfonate, (+)-(S)-5-{[(4-methylphenyl)sulfonyloxy]methyl}pyrrolidin-2-one
(S)-(+)-5-(Hydroxymethyl)-2-pyrrolidinone p-toluenesulfonate (CAS 51693-17-5) is a compound in the Solvents category listed in the Jingsj chemical database. It has the molecular formula C12H15NO4S and a molecular weight of 269.317 g/mol. Key properties include a melting point of 124-128ºC(lit.), a boiling point of 504.8±23.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 259.1±22.6 °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.
- 51693-17-5
- Jingsj CID
- J-42725-8
- Molecular Formula
- C12H15NO4S
- Molecular Weight
- 269.317 g/mol
- Category
- Solvents
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 124-128ºC(lit.) |
|---|---|
| Boiling Point | 504.8±23.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 259.1±22.6 °C |
| Exact Mass | 269.072174 |
| PSA | 80.85000 |
| LogP | -0.47 |
| Vapor Pressure | 0.0±1.3 mmHg at 25°C |
| Refractive Index | 1.545 |
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 p-toluenesulfonate?
The CAS number of (S)-(+)-5-(Hydroxymethyl)-2-pyrrolidinone p-toluenesulfonate is 51693-17-5.
What are the molecular formula and molecular weight of (S)-(+)-5-(Hydroxymethyl)-2-pyrrolidinone p-toluenesulfonate?
(S)-(+)-5-(Hydroxymethyl)-2-pyrrolidinone p-toluenesulfonate has molecular formula C12H15NO4S and molecular weight 269.317 g/mol.
Is (S)-(+)-5-(Hydroxymethyl)-2-pyrrolidinone p-toluenesulfonate hazardous?
(S)-(+)-5-(Hydroxymethyl)-2-pyrrolidinone p-toluenesulfonate 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 p-toluenesulfonate?
For (S)-(+)-5-(Hydroxymethyl)-2-pyrrolidinone p-toluenesulfonate, Upstream Products: p-Toluenesulfonyl chloride, (S)-(+)-5-(Hydroxymethyl)-2-pyrrolidinone, Bis(tetrabutylammonium) sulfate.
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 p-toluenesulfonate (CAS 51693-17-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-42725-8 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.