Hydralazine86-54-4100 % similar Hydralazine hydrochloride304-20-190 % similar Dihydralazine sulfate7327-87-938 % similar 4-Isoquinolinamine23687-25-436 % similar Phenanthridine229-87-834 % similar 1(2H)-Phthalazinone119-39-132 % similar 4-Bromoisoquinoline1532-97-432 % similar 1H-Indazol-5-amine19335-11-631 % similar Phenanthrene85-01-830 % similar