1,2-Hydrazinedicarboxamide 110-21-4 Bicarbamamide Bicarbamimidic acid Biurea Formamide, 1,1'-hydrazobis- Formimidic acid, 1-semicarbazido- Hydrazine, 1,2-bis(aminocarbonyl)- Hydrazine, 1,2-dicarbamoyl- Hydrazinecarboximidic acid, 2-(aminocarbonyl)- Hydrazocarbonamide Hydrazodicarbonamide Hydrazodicarboxamide NSC1897 Pseudourea, 3-ureido- Semicarbazide, 1-(1-hydroxyformimidoyl)- Semicarbazide, 1-carbamoyl- Urea, ureido- Ureidourea