2-(1-Methylheptylidene)hydrazinecarboxamide 2-Octanone, semicarbazone 3622-69-3 4-03-00-00185 (Beilstein Handbook Reference) AI3-04730 BRN 1773893 Hydrazinecarboxamide, 2-(1-methylheptylidene)- (9CI) Methyl hexyl ketone semicarbazone