3-Hydrazino-5,6,7,8-tetrahydropyrido(4,3-c)pyridazin-6-yl-phenyl-keton 39715-02-1 6-Benzoyl-3-hydrazino-5,6,7,8-tetrahydropyrido(4,3-c)pyridazin 65322-72-7 BQ 22-708 ENDRALAZINE Endralazina [INN-Spanish] Endralazinum [INN-Latin] Pyrido(4,3-c)pyridazin-3(2H)-one, 6-benzoyl-5,6,7,8-tetrahydro-, 3-hydrazone