1(2H)-Phthalazinone (1,3-dimethyl-2-butenylidene)hydrazone 1(2H)-Phthalazinone, (1,3-dimethyl-2-butenylidene)hydrazone 1-(2-(1,3-Dimethyl-2-butenylidene)hydrazino)phthalazine 36798-79-5 4-Methyl-3-penten-2-one (1-phthalazinyl)hydrazone 78859-43-5 Budralazina [INN-Spanish] Budralazine Budralazine [INN:JAN] Budralazinum [INN-Latin] Buterazine DJ 1461 DJ-1461 Mesityl oxide (1-phthalazinyl)hydrazone Phthalazine, 1-(2-(1,3-dimethyl-2-butenylidene)hydrazino)-