(2S)-2-cyclohexyl-2-hydroxyacetic acid

N,N-二甲基-4-[(5-硝基噻唑-2-基)偶氮]苯胺

4-二甲氨基偶氮苯-4’-胂酸

4,4’-双(二甲氨基)偶氮苯

2-[bis[4-(dimethylamino)phenyl]methyl]benzoic acid