5-nitro-2-thiophenecarboxaldehyde
phenylhydrazine
5-nitrothiophene-2-carboxaldehyde diacetate
thiophene-2-carbaldehyde
5-nitro-2-thiophenaldehyde 2-chloroformyl-2-phenylhydrazone
C18H14N4O3S
4-(3-Methoxy-phenyl)-5-(5-nitro-thiophen-2-yl)-2-phenyl-2,4-dihydro-[1,2,4]triazol-3-one
4-(4-Bromo-phenyl)-5-(5-nitro-thiophen-2-yl)-2-phenyl-2,4-dihydro-[1,2,4]triazol-3-one
4-(4-Chloro-phenyl)-5-(5-nitro-thiophen-2-yl)-2-phenyl-2,4-dihydro-[1,2,4]triazol-3-one