Tetramic acid
1,5-二氢-4-羟基-2H-吡咯-2-酮
Also known as: 4-Hydroxy-1H-pyrrol-2(5H)-one, 1,5-Dihydro-4-hydroxy-2H-pyrrol-2-one, Pyrrolidine-2,4-dione, 2,4-Pyrrolidinedione, 5-Hydroxy-1,2-dihydropyrrol-3-one, 4-Ketopyrrolidinone
Tetramic acid (CAS 503-83-3) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C4H5NO2 and a molecular weight of 99.088 g/mol. It is also known as 4-Hydroxy-1H-pyrrol-2(5H)-one, 1,5-Dihydro-4-hydroxy-2H-pyrrol-2-one and Pyrrolidine-2,4-dione. Key properties include a boiling point of 378.9±42.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 182.9±27.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 503-83-3
- Jingsj CID
- J-1492661-9
- Molecular Formula
- C4H5NO2
- Chinese Name
- 1,5-二氢-4-羟基-2H-吡咯-2-酮
- Molecular Weight
- 99.088 g/mol
- Category
- Ketones
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 378.9±42.0 °C at 760 mmHg |
|---|---|
| Density | 1.4±0.1 g/cm3 |
| Flash Point | 182.9±27.9 °C |
Frequently Asked Questions
What is the CAS number of Tetramic acid?
The CAS number of Tetramic acid is 503-83-3.
What are the molecular formula and molecular weight of Tetramic acid?
Tetramic acid has molecular formula C4H5NO2 and molecular weight 99.088 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Tetramic acid (CAS 503-83-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1492661-9 (accessed 2026-10-25).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.