N,N,N',N'-tetramethyl-3,3',5,5'-tetranitrobenzidine

(E)-1-[4-(dimethylamino)phenyl]-3-phenylprop-2-en-1-one

4-二甲氨基-4'-硝基联苯

2-dimethylamino-4'-nitrobiphenyl

α-溴苯乙酸乙酯