1-Acetyl-1,5-dihydro-4-methyl-2H-pyrrol-2-one
1-乙酰基-4-甲基-1,5-二氢-2H-吡咯-2-酮
Also known as: 1-Acetyl-4-methyl-3-pyrrolin-2-one, 1-Acetyl-4-methyl-2-oxo-3-pyrroline, 1-acetyl-4-methyl-1,5-dihydro-pyrrol-2-one, 1-acetyl-4-methyl-5H-pyrrol-2-one, 1-Acetyl-4-methyl-2,5-dihydro-1H-pyrrol-2-one
1-Acetyl-1,5-dihydro-4-methyl-2H-pyrrol-2-one (CAS 34581-92-5) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C7H9NO2 and a molecular weight of 139.15200 g/mol. It is also known as 1-Acetyl-4-methyl-3-pyrrolin-2-one, 1-Acetyl-4-methyl-2-oxo-3-pyrroline and 1-acetyl-4-methyl-1,5-dihydro-pyrrol-2-one. Key properties include a melting point of 89ºC, a boiling point of 265.4ºC at 760mmHg, a density of 1.171g/cm3 and a flash point of 121.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 34581-92-5
- Jingsj CID
- J-998774-4
- Molecular Formula
- C7H9NO2
- Chinese Name
- 1-乙酰基-4-甲基-1,5-二氢-2H-吡咯-2-酮
- Molecular Weight
- 139.15200 g/mol
- Category
- Ketones
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 89ºC |
|---|---|
| Boiling Point | 265.4ºC at 760mmHg |
| Density | 1.171g/cm3 |
| Flash Point | 121.4ºC |
Frequently Asked Questions
What is the CAS number of 1-Acetyl-1,5-dihydro-4-methyl-2H-pyrrol-2-one?
The CAS number of 1-Acetyl-1,5-dihydro-4-methyl-2H-pyrrol-2-one is 34581-92-5.
What are the molecular formula and molecular weight of 1-Acetyl-1,5-dihydro-4-methyl-2H-pyrrol-2-one?
1-Acetyl-1,5-dihydro-4-methyl-2H-pyrrol-2-one has molecular formula C7H9NO2 and molecular weight 139.15200 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1-Acetyl-1,5-dihydro-4-methyl-2H-pyrrol-2-one (CAS 34581-92-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-998774-4 (accessed 2026-10-24).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.