4-二甲氨基苯异氰酸酯

4-羟基-4-二甲氨基偶氮苯

N,N-dimethyl-4-(pyridin-4-ylmethylideneamino)aniline

3-[4-(dimethylamino)phenyl]imidazolidine-2,4-dione

4-chloro-N,N-dimethyl-2-nitroaniline