563-41-7 57-56-7 AI3-52680 Amidourea hydrochloride Aminourea hydrochloride CCRIS 556 Carbamylhydrazine hydrochloride EINECS 209-247-0 EK 226 HSDB 5197 Hydrazinecarboxamide monohydrochloride Hydrazinecarboxamide, hydrochloride Hydrazinecarboxamide, hydrochloride (VAN) Hydrazinecarboxamide, monohydrochloride NSC 4732 SEMICARBAZIDE HYDROCHLORIDE Semicarbazide HCl Semicarbazide chloride Semicarbazide hydrochloride (VAN) Semicarbazide monohydrochloride Semicarbazide, monohydrochloride