4,5-Dichloro-2-phenylpyridazin-3(2H)-one

4,5-二氯-2-苯基-3(2H)-哒嗪酮

Also known as: 1-Phenyl-4,5-dichloro-6-pyridazone, 1-Phenyl-4,5-dichloropyridazin-6-one, 2-Phenyl-4,5-dichloro-2,3-dihydropyridazin-3-one, 2-Phenyl-4,5-dichloropyridazine-3(2H)-one, 4,5-Dichloro-2-phenyl-2H-pyridazin-3-one, MFCD00006470, EINECS 216-917-6

4,5-Dichloro-2-phenylpyridazin-3(2H)-one (CAS 1698-53-9) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C10H6Cl2N2O and a molecular weight of 241.07300 g/mol. It is also known as 1-Phenyl-4,5-dichloro-6-pyridazone, 1-Phenyl-4,5-dichloropyridazin-6-one and 2-Phenyl-4,5-dichloro-2,3-dihydropyridazin-3-one. Key properties include a melting point of 164-166 °C(lit.), a boiling point of 306.967°C at 760 mmHg, a density of 1.435g/cm3 and a flash point of 139.449°C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

1698-53-9

Jingsj CID

J-47431-9

Molecular Formula

C₁₀H₆Cl₂N₂O

Chinese Name

4,5-二氯-2-苯基-3(2H)-哒嗪酮

Molecular Weight

241.07300 g/mol

Category

Ketones

Last updated

8/21/2026