110-20-3 2-Propanone, semicarbazone 4-03-00-00179 (Beilstein Handbook Reference) AI3-00507 Acetone semicarbazone Acetonesemicarbazone BRN 0970110 EINECS 203-746-7 Hydrazinecarboxamide, 2-(1-methylethylidene)- NSC 456