119034-08-1 1H-Pyrrole-2-carboxaldehyde, 4-(p-nitrophenyl)semicarbazone Hydrazinecarboxamide, N-(4-nitrophenyl)-2-(1H-pyrrol-2-ylmethylene)- (9CI) Semicarbazide, 4-(p-nitrophenyl)-1-(2-pyrrolylmethylene)-