41932-99-4

4-CHLORO-5-(1-METHYLHYDRAZINO)-2-PHENYLPYRIDAZIN-3(2H)-ONE 4-Chloro-5-(1-methylhydrazino)-2-phenyl-3(2H)-pyridazinone 3(2H)-Pyridazinone, 4-chloro-5-(1-methylhydrazinyl)-2-phenyl- 4-CHLORO-5-(1-METHYLHYDRAZINO)-2-PHENYL-2,3-DIHYDROPYRIDAZIN-3-ONE