semicarbazide Semikarbazid Semicarbazide A monocarboxylic acid amide that is urea where one of the amino groups has been replaced with hydrazine. CHEBI:9102 Aminourea Aminoharnstoff Hydrazinecarboxamide CHEBI:28306 Carbamidsaeurehydrazid carbamylhydrazine chebi_ontology Carbamoylhydrazine Hydrazinecarboxamide carbazamide CHEBI:26644 monocarboxylic acid amide carbohydrazide ureas one-carbon compound