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5,6-dimethyl-1,3-dihydro-2H-benzimidazol-2-one

Also known as: 5,6-Dimethyl-2-benzimidazolinone, 5,6-dimethyl-1,3-dihydrobenzimidazol-2-one, 5,6-dimethyl-1H-benzo[d]imidazol-2(3H)-one, 5,6-Dimethyl-1,3-dihydro-benzimidazol-2-one, 5,6-dimethylbenzimidazolone, 5,6-dimethylbenzimidazolin-2-one, 4,5-dimethyl-2-benzimidazolone, 2-Benzimidazolinone,5,6-dimethyl-, 2H-Benzimidazol-2-one, 1,3-dihydro-5,6-dimethyl-

5,6-dimethyl-1,3-dihydro-2H-benzimidazol-2-one (CAS 2033-30-9) 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 162.189 g/mol. Key properties include a melting point of 300ºC, a boiling point of 174.0±30.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 60.7±24.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
2033-30-9
Jingsj CID
J-1513772-1
Molecular Formula
C9H10N2O
Molecular Weight
162.189 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point300ºC
Boiling Point174.0±30.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point60.7±24.7 °C
Exact Mass162.079315
PSA48.65000
LogP2.04
Vapor Pressure1.2±0.3 mmHg at 25°C
Refractive Index1.568

Customs & Trade Information

HS Code2933990090
Summary2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 5,6-dimethyl-1,3-dihydro-2H-benzimidazol-2-one?

The CAS number of 5,6-dimethyl-1,3-dihydro-2H-benzimidazol-2-one is 2033-30-9.

What are the molecular formula and molecular weight of 5,6-dimethyl-1,3-dihydro-2H-benzimidazol-2-one?

5,6-dimethyl-1,3-dihydro-2H-benzimidazol-2-one has molecular formula C9H10N2O and molecular weight 162.189 g/mol.

What are the upstream and downstream products of 5,6-dimethyl-1,3-dihydro-2H-benzimidazol-2-one?

For 5,6-dimethyl-1,3-dihydro-2H-benzimidazol-2-one, Upstream Products: Carbon dioxide, 4,5-Dimethyl-1,2-phenylenediamine, Urea; Downstream Products: 2-CHLORO-5,6-DIMETHYLBENZIMIDAZOLE.

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

Last updated:

How to cite: Jingsj. "5,6-dimethyl-1,3-dihydro-2H-benzimidazol-2-one (CAS 2033-30-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1513772-1 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.