4-Chloro-5-(ethylsulfanyl)-2-phenyl-3(2H)-pyridazinone

4-氯-5-(乙基硫代)-2-苯基哒嗪-3(2H)-酮

Also known as: 4-CHLORO-5-(ETHYLTHIO)-2-PHENYLPYRIDAZINE-3(2H)-ONE, 3(2H)-Pyridazinone, 4-chloro-5-(ethylthio)-2-phenyl-, 4-CHLORO-5-(ETHYLTHIO)-2-PHENYLPYRIDAZIN-3(2H)-ONE, 4-chloro-5-ethylsulfanyl-2-phenyl-2H-pyridazin-3-one, 4-Chloro-5-(ethylthio)-2-phenylpyridazin-3(2H)-one

4-Chloro-5-(ethylsulfanyl)-2-phenyl-3(2H)-pyridazinone (CAS 25381-21-9) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C12H11ClN2OS and a molecular weight of 266.74700 g/mol. It is also known as 4-CHLORO-5-(ETHYLTHIO)-2-PHENYLPYRIDAZINE-3(2H)-ONE, 3(2H)-Pyridazinone, 4-chloro-5-(ethylthio)-2-phenyl- and 4-CHLORO-5-(ETHYLTHIO)-2-PHENYLPYRIDAZIN-3(2H)-ONE. Key properties include a boiling point of 351.6ºC at 760 mmHg and a density of 1.3g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

25381-21-9

Jingsj CID

J-1591839-6

Molecular Formula

C₁₂H₁₁ClN₂OS

Chinese Name

4-氯-5-(乙基硫代)-2-苯基哒嗪-3(2H)-酮

Molecular Weight

266.74700 g/mol

Category

Ketones

Last updated

8/21/2026