Ethyl L-pyroglutamate
Also known as: Ethyl (S)-2-pyrrolidinone-5-carboxylate, Ethyl (S)-2-pyrrolidone-5-carboxylate, Ethyl (S)-pyroglutamate, Ethyl 5-oxo-L-prolinate, (S)-5-Oxoproline ethyl ester, H-Pyr-OEt, ethyl (2S)-5-oxopyrrolidine-2-carboxylate, (+)-L-Pyroglutamic acid ethyl ester
Ethyl L-pyroglutamate (CAS 7149-65-7) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H11NO3 and a molecular weight of 157.17 g/mol. Key properties include a melting point of 54-56 °C, a boiling point of 312.7±35.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 142.9±25.9 °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.
- 7149-65-7
- Jingsj CID
- J-8274-6
- Molecular Formula
- C7H11NO3
- Molecular Weight
- 157.17 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 54-56 °C |
|---|---|
| Boiling Point | 312.7±35.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 142.9±25.9 °C |
| Exact Mass | 157.073898 |
| PSA | 55.40000 |
| LogP | -1.39 |
| Vapor Pressure | 0.0±0.7 mmHg at 25°C |
| Refractive Index | 1.466 |
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 Ethyl L-pyroglutamate?
The CAS number of Ethyl L-pyroglutamate is 7149-65-7.
What are the molecular formula and molecular weight of Ethyl L-pyroglutamate?
Ethyl L-pyroglutamate has molecular formula C7H11NO3 and molecular weight 157.17 g/mol.
Is Ethyl L-pyroglutamate hazardous?
Ethyl L-pyroglutamate 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 Ethyl L-pyroglutamate?
For Ethyl L-pyroglutamate, Upstream Products: Ethanol, L-Pyroglutamic acid, Iodoethane; Downstream Products: (5S)-5-[[[(tert-Butyl)dimethylsilyl]oxy]methyl]pyrrolidin-2-one, (1S,3S,5S)-tert-Butyl 3-carbamoyl-2-azabicyclo[3.1.0]hexane-2-carboxylate, (2S,5S)-1-(tert-butoxycarbonyl)-5-methylpyrrolidine-2-carboxylic 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. "Ethyl L-pyroglutamate (CAS 7149-65-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-8274-6 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.