3,5-dimethyl-4-[(4-nitrophenyl)hydrazinylidene]cyclohexa-2,5-dien-1-one

2,6-二甲基硝基苯

4-(4-hydroxy-2,6-dimethyl-phenylazo)-benzenesulfonic acid

4-偶氮基苯磺酸酯

3,5-Dimethyl-4-phenylazo-phenol