1-Methyl-5-oxopyrrolidine-3-carboxylic acid
Also known as: 1-Methyl-2-oxopyrrolidine-4-carboxylic acid, 1-Methyl-5-oxo-3-pyrrolidinecarboxylic acid, 1-Methyl-5-oxopyrrolidine-3-carboxylic acid, N-Methylpyridone-5-one-3-carboxylic acid
1-Methyl-5-oxopyrrolidine-3-carboxylic acid (CAS 42346-68-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H9NO3 and a molecular weight of 143.14100 g/mol. Key properties include a boiling point of 361.7ºC at 760 mmHg, a density of 1.319 g/cm3 and a flash point of 172.5ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 42346-68-9
- Jingsj CID
- J-1363366-4
- Molecular Formula
- C6H9NO3
- Molecular Weight
- 143.14100 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 361.7ºC at 760 mmHg |
|---|---|
| Density | 1.319 g/cm3 |
| Flash Point | 172.5ºC |
| Exact Mass | 143.05800 |
| PSA | 57.61000 |
| Refractive Index | 1.519 |
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 1-Methyl-5-oxopyrrolidine-3-carboxylic acid?
The CAS number of 1-Methyl-5-oxopyrrolidine-3-carboxylic acid is 42346-68-9.
What are the molecular formula and molecular weight of 1-Methyl-5-oxopyrrolidine-3-carboxylic acid?
1-Methyl-5-oxopyrrolidine-3-carboxylic acid has molecular formula C6H9NO3 and molecular weight 143.14100 g/mol.
What are the upstream and downstream products of 1-Methyl-5-oxopyrrolidine-3-carboxylic acid?
For 1-Methyl-5-oxopyrrolidine-3-carboxylic acid, Upstream Products: Itaconic acid, Methyl 1-methyl-2-oxopyrrolidine-4-carboxylate, Dimethyl itaconate; Downstream Products: Methyl 1-methyl-2-oxopyrrolidine-4-carboxylate, 1,3-dimethylpyrrolidin-2-one, 1,4-Dimethyl-2-pyrrolidone.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1-Methyl-5-oxopyrrolidine-3-carboxylic acid (CAS 42346-68-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1363366-4 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.