4-(4-Chlorophenyl)phthalazin-1(2H)-one

4-(4-氯苯基)-1(2H)-酞嗪酮

Also known as: 4-(4-Chlorophenyl)-1(2H)-phthalazinone, 4-(4-Chlorophenyl)-2H-phthalazin-1-one, 1(2H)-Phthalazinone, 4-(4-chlorophenyl)-, 4-(4'-chlorophenyl)phthalazin-1-one, 4-(4-chloro-phenyl)-2H-phthalazin-1-one, 4-(4-chlorophenyl)-1-phthalazinol, MFCD00098133

4-(4-Chlorophenyl)phthalazin-1(2H)-one (CAS 51334-86-2) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C14H9ClN2O and a molecular weight of 256.68700 g/mol. It is also known as 4-(4-Chlorophenyl)-1(2H)-phthalazinone, 4-(4-Chlorophenyl)-2H-phthalazin-1-one and 1(2H)-Phthalazinone, 4-(4-chlorophenyl)-. Key properties include a melting point of 270-274ºC(lit.), a boiling point of 503.5ºC at 760 mmHg, a density of 1.36 g/cm3 and a flash point of 258.3ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

51334-86-2

Jingsj CID

J-16692-4

Molecular Formula

C₁₄H₉ClN₂O

Chinese Name

4-(4-氯苯基)-1(2H)-酞嗪酮

Molecular Weight

256.68700 g/mol

Category

Ketones

Last updated

8/21/2026