3778-76-5 621-BT hydrochloride Apirachol Binazin Binazine CARBAZIC ACID, 3-(1-PHTHALAZINYL)-, ETHYL ESTER, MONOHYDROCHLORIDE CCRIS 5090 Ecarazine Ecarazine hydrochloride Hydrazinecarboxylic acid, 2-(1-phthalazinyl)-, ethyl ester, monohydrochloride (9CI) N1-Ethoxy carbonyl-N2-hydrazinophthalazine hydrochloride Todralazine Todralazine hydrochloride