4-(5-bromo-2-hydroxy-phenylazo)-benzenesulfonic acid amide

磺胺吡啶

4-[2-(3-methoxy-6-oxocyclohexa-2,4-dien-1-ylidene)hydrazinyl]benzenesulfonamide

枸橼酸铋钾

4-硝基苯磺酰胺