(4-Hydroxy-2-oxo-1-pyrrolidinyl)acetic acid
Also known as: (4-Hydroxy-2-oxopyrrolidin-1-yl)acetic acid, 1-Pyrrolidineacetic acid, 4-hydroxy-2-oxo-, 2-(4-hydroxy-2-oxopyrrolidin-1-yl)acetic acid, 4-Hydroxy-2-oxo-1-pyrrolidineacetic acid, 4-hydroxy-2-oxo-1-pyrrolidine acetic acid, 4-hydroxy-2-oxopyrrolidin-1-yl-acetic acid, Oxiracetam Imp. ISF3138, Oxiracetam Impurity B, Oxiracetam Impurity 7, oxiracetam related substance ISF3138
(4-Hydroxy-2-oxo-1-pyrrolidinyl)acetic acid (CAS 77191-37-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H9NO4 and a molecular weight of 159.140 g/mol. Key properties include a boiling point of 465.6±40.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 235.4±27.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 77191-37-8
- Jingsj CID
- J-1145920-4
- Molecular Formula
- C6H9NO4
- Molecular Weight
- 159.140 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 465.6±40.0 °C at 760 mmHg |
|---|---|
| Density | 1.5±0.1 g/cm3 |
| Flash Point | 235.4±27.3 °C |
| Exact Mass | 159.053162 |
| PSA | 77.84000 |
| LogP | -1.69 |
| Vapor Pressure | 0.0±2.6 mmHg at 25°C |
| Refractive Index | 1.570 |
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 (4-Hydroxy-2-oxo-1-pyrrolidinyl)acetic acid?
The CAS number of (4-Hydroxy-2-oxo-1-pyrrolidinyl)acetic acid is 77191-37-8.
What are the molecular formula and molecular weight of (4-Hydroxy-2-oxo-1-pyrrolidinyl)acetic acid?
(4-Hydroxy-2-oxo-1-pyrrolidinyl)acetic acid has molecular formula C6H9NO4 and molecular weight 159.140 g/mol.
What are the upstream and downstream products of (4-Hydroxy-2-oxo-1-pyrrolidinyl)acetic acid?
For (4-Hydroxy-2-oxo-1-pyrrolidinyl)acetic acid, Upstream Products: ethyl 4-hydroxy-2-oxopyrrolidine-1-acetate, (4-Ethoxy-2-oxo-2,5-dihydro-1H-pyrrol-1-yl)acetic acid, ethyl 2-(2,4-dioxopyrrolidin-1-yl)acetate; Downstream Products: ethyl 4-hydroxy-2-oxopyrrolidine-1-acetate.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "(4-Hydroxy-2-oxo-1-pyrrolidinyl)acetic acid (CAS 77191-37-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1145920-4 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.