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

1-(2-甲基苯基)-1H-吡咯-2,5-二酮

Also known as: N-(o-Tolyl)maleimide, N-(2-Methylphenyl)maleimide, 1-o-Tolyl-pyrrole-2,5-dione, N-(o-Methylphenyl)maleimide, N-2-Tolylmaleimide, MALEIMIDE, N-o-TOLYL-, 1-(2-Methylphenyl)maleimide, MFCD00022567, TIMTEC-BB SBB000264

1-(2-Methylphenyl)-1H-pyrrole-2,5-dione (CAS 4067-01-0) 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 N-(o-Tolyl)maleimide, N-(2-Methylphenyl)maleimide and 1-o-Tolyl-pyrrole-2,5-dione. Key properties include a boiling point of 311.4ºC at 760mmHg, a density of 1.277g/cm3 and a flash point of 139.3ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
4067-01-0
Jingsj CID
J-33010-7
Molecular Formula
C11H9NO2
Chinese Name
1-(2-甲基苯基)-1H-吡咯-2,5-二酮
Molecular Weight
187.19500 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point311.4ºC at 760mmHg
Density1.277g/cm3
Flash Point139.3ºC

Frequently Asked Questions

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

The CAS number of 1-(2-Methylphenyl)-1H-pyrrole-2,5-dione is 4067-01-0.

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

1-(2-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:

How to cite: Jingsj. "1-(2-Methylphenyl)-1H-pyrrole-2,5-dione (CAS 4067-01-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-33010-7 (accessed 2026-10-22).

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