4-amino-3,5-diiodo-benzenesulfonic acid amide

磺胺对甲氧嘧啶

4-(2,4-dihydroxy-phenylazo)-benzenesulfonic acid amide

4-(5-Formyl-2-hydroxy-phenylazo)-benzenesulfonamide

4-((4-(dimethylamino)-2-hydroxyphenyl)diazenyl)benzenesulfonamide