Synonyms: Benzenesulfonamide,4-[(2,4-diaminophenyl)azo]- (9CI); Benzenesulfonamide,p-[(2,4-diaminophenyl)azo]- (7CI,8CI); Prontosil (6CI); Chrysoidine,4'-(aminosulfonyl)-; Parazol; Prontosil flavum; Prontosil red; Prontosilrubrum; Pronzin rubrum; Red streptocide; Relbazon; Streptocide;Sulfamidochrysoidin; Sulfamidochrysoidine; p-[(2,4-Diaminophenyl)azo]benzenesulfonamide