1-(3-Methylphenyl)-1H-pyrrole-2,5-dione

1-(3-甲基苯基)-1H-吡咯-2,5-二酮

Also known as: 1-(3-METHYLPHENYL)-1H-PYRROLE-2,5-DIONE, 1-(3-methylphenyl)-3-pyrroline-2,5-quinone, 1-(3-methylphenyl)pyrrole-2,5-dione, 1-(m-Tolyl)-1H-pyrrole-2,5-dione, 1H-Pyrrole-2,5-dione, 1-(3-methylphenyl)-, AKOS MSC-0014, ASISCHEM C66322, N-(3-METHYLPHENYL)MALEIMIDE, N-m-Tolyl-maleinimid, N-m-tolyl-maleimide

1-(3-Methylphenyl)-1H-pyrrole-2,5-dione (CAS 20299-79-0) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C11H9NO2 and a molecular weight of 187.19500 g/mol. It is also known as 1-(3-METHYLPHENYL)-1H-PYRROLE-2,5-DIONE, 1-(3-methylphenyl)-3-pyrroline-2,5-quinone and 1-(3-methylphenyl)pyrrole-2,5-dione. Key properties include a boiling point of 333.5ºC at 760mmHg and a density of 1.277g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 20299-79-0
Jingsj CID: J-42606-8
Molecular Formula: C₁₁H₉NO₂
Chinese Name: 1-(3-甲基苯基)-1H-吡咯-2,5-二酮
Molecular Weight: 187.19500 g/mol
Category: Ketones
Last updated: 8/21/2026

No offers for this compound yet.

Request a quote

Physicochemical Properties

Boiling Point	333.5ºC at 760mmHg
Density	1.277g/cm3

Frequently Asked Questions

What is the CAS number of 1-(3-Methylphenyl)-1H-pyrrole-2,5-dione?

The CAS number of 1-(3-Methylphenyl)-1H-pyrrole-2,5-dione is 20299-79-0.

What are the molecular formula and molecular weight of 1-(3-Methylphenyl)-1H-pyrrole-2,5-dione?

1-(3-Methylphenyl)-1H-pyrrole-2,5-dione has molecular formula C11H9NO2 and molecular weight 187.19500 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "1-(3-Methylphenyl)-1H-pyrrole-2,5-dione (CAS 20299-79-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-42606-8 (accessed 2026-10-24).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.