((p-Acetylphenyl)azo)malononitrile semicarbazone 1867-06-7 4-Acetyl-phenyl-azo-malonitril-semicarbazon [German] F 2318 Hydrazinecarboxamide, 2-(1-(4-((dicyanomethyl)azo)phenyl)ethylidene)- MALONONITRILE, ((p-ACETYLPHENYL)AZO)-, SEMICARBAZONE