碳酰肼carbonic dihydrazideCARBAZIDECarbohydrazideCarbohydrazidecarbonohydrazidecarbohydrazidecarbonodihydrazide4-aminosemicarbazideCarbonohydrazidhydrazinecarboxamideN-aminohydrazine carboxamideN-aminohydrazinecarboxamide1,3-diaminoureacarbonyl dihydrazineN,N'-diaminoureacarbonic dihydrazidecarbodihydrazidediaminoureacarbonylbis-hydrazinecabazidecarbazidehydrazide hydrazinecarboxylic acid