2-Hydroxy-5-[[4-[(2-pyridinylamino)sulfonyl]phenyl]azo]benzoic Acid; 5-[[p-(2-Pyridylsulfamoyl)phenyl]azo]salicylic Acid; 5-[p-(2-Pyridylsulfamyl)phenylazo]salicylic Acid; Azopyrin; Azopyrine; Azulfidine; Azulfidine EN; Benzosulfa; Colo-Pleon; NSC 203730; NSC 667219; Reupirin; Salazopyridin; Salazopyrin; Salazopyrine; Salazosulfapyridin; Salazosulfapyridine; Salicylazosulfapyridine; Salisulf; Sulfasalazin; Sulphasalazine;
