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1,3-Dimethyl-1,3-dihydro-2H-benzimidazol-2-one

1,3-二甲基苯并咪唑-2-酮

Also known as: 1,3-Dimethylbenzimidazol-2-one, 1,3-Dimethylbenzimidazolinone, 1,3-Dimethyl-2-benzimidazolone, N,N'-Dimethyl-2-benzimidazolone, N,N'-Dimethylbenzimidazole, 1,3-dimethyl-1H-benzo[d]imidazol-2(3H)-one, 1,3-dihydro-1,3-dimethyl-2H-benzimidazol-2-one, 1,3-dimethyl-2-oxo-2,3-dihydrobenzimidazole

1,3-Dimethyl-1,3-dihydro-2H-benzimidazol-2-one (CAS 3097-21-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H10N2O and a molecular weight of 162.18800 g/mol. It is also known as 1,3-Dimethylbenzimidazol-2-one, 1,3-Dimethylbenzimidazolinone and 1,3-Dimethyl-2-benzimidazolone. Key properties include a boiling point of 240ºC at 760mmHg, a density of 1.182g/cm3 and a flash point of 97.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
3097-21-0
Jingsj CID
J-33986-9
Molecular Formula
C9H10N2O
Chinese Name
1,3-二甲基苯并咪唑-2-酮
Molecular Weight
162.18800 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point240ºC at 760mmHg
Density1.182g/cm3
Flash Point97.1ºC

Frequently Asked Questions

What is the CAS number of 1,3-Dimethyl-1,3-dihydro-2H-benzimidazol-2-one?

The CAS number of 1,3-Dimethyl-1,3-dihydro-2H-benzimidazol-2-one is 3097-21-0.

What are the molecular formula and molecular weight of 1,3-Dimethyl-1,3-dihydro-2H-benzimidazol-2-one?

1,3-Dimethyl-1,3-dihydro-2H-benzimidazol-2-one has molecular formula C9H10N2O and molecular weight 162.18800 g/mol.

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

Last updated:

How to cite: Jingsj. "1,3-Dimethyl-1,3-dihydro-2H-benzimidazol-2-one (CAS 3097-21-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-33986-9 (accessed 2026-10-22).

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