tert-Butyl (2S)-2-(hydroxymethyl)-5-oxopyrrolidine-1-carboxylate
Also known as: Boc-L-Pyroglutaminol, Boc-Pyr-OL, Boc-L-Pyr-OL, 1-Pyrrolidinecarboxylic acid, 2-(hydroxymethyl)-5-oxo-, 1,1-dimethylethyl ester, (2S)-
tert-Butyl (2S)-2-(hydroxymethyl)-5-oxopyrrolidine-1-carboxylate (CAS 81658-25-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H17NO4 and a molecular weight of 215.246 g/mol. Key properties include a boiling point of 370.9±15.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 178.1±20.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 81658-25-5
- Jingsj CID
- J-1401508-8
- Molecular Formula
- C10H17NO4
- Molecular Weight
- 215.246 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 370.9±15.0 °C at 760 mmHg |
|---|---|
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 178.1±20.4 °C |
| Exact Mass | 215.115753 |
| PSA | 66.84000 |
| LogP | -1.01 |
| Vapor Pressure | 0.0±1.9 mmHg at 25°C |
| Refractive Index | 1.496 |
| Storage Conditions | 2-8°C |
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 tert-Butyl (2S)-2-(hydroxymethyl)-5-oxopyrrolidine-1-carboxylate?
The CAS number of tert-Butyl (2S)-2-(hydroxymethyl)-5-oxopyrrolidine-1-carboxylate is 81658-25-5.
What are the molecular formula and molecular weight of tert-Butyl (2S)-2-(hydroxymethyl)-5-oxopyrrolidine-1-carboxylate?
tert-Butyl (2S)-2-(hydroxymethyl)-5-oxopyrrolidine-1-carboxylate has molecular formula C10H17NO4 and molecular weight 215.246 g/mol.
What are the upstream and downstream products of tert-Butyl (2S)-2-(hydroxymethyl)-5-oxopyrrolidine-1-carboxylate?
For tert-Butyl (2S)-2-(hydroxymethyl)-5-oxopyrrolidine-1-carboxylate, Upstream Products: tert-butyl 2-oxo-2,5-dihydro-1H-pyrrole-1-carboxylate, Di-tert-butyl dicarbonate, (S)-(+)-5-(Hydroxymethyl)-2-pyrrolidinone; Downstream Products: Boc-L-pyroglutamic acid.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "tert-Butyl (2S)-2-(hydroxymethyl)-5-oxopyrrolidine-1-carboxylate (CAS 81658-25-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1401508-8 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.