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

5,6-二氨基苯并咪唑-2-酮

Also known as: 5,6-Diamino-1,3-dihydro-2H-benzoimidazol-2-one, 5,6-Diamino-1H-benzo[d]imidazol-2(3H)-one, 5,6-Diamino-2-benzimidazolinone, 5,6-Diamino-2-benzimidazolone, 5,6-Diamino-2H-benzo[d]imidazol-2-one, 1,3-dihydro-5,6-diamino-2H-benzimidazol-2-one

5,6-Diamino-1,3-dihydro-2H-benzimidazol-2-one (CAS 55621-49-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C7H8N4O and a molecular weight of 164.165 g/mol. It is also known as 5,6-Diamino-1,3-dihydro-2H-benzoimidazol-2-one, 5,6-Diamino-1H-benzo[d]imidazol-2(3H)-one and 5,6-Diamino-2-benzimidazolinone. Key properties include a melting point of >300ºC, a boiling point of 258.6±33.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 110.2±25.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

55621-49-3

Jingsj CID

J-870248-9

Molecular Formula

C₇H₈N₄O

Chinese Name

5,6-二氨基苯并咪唑-2-酮

Molecular Weight

164.165 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026