2-Aminophenol-4-sulfonamide 3-Amino-4-hydroxybenzenesulfonamide 3-Amino-4-hydroxybenzenesulphonamide 4-Hydroxymetanilamide 98-32-8 Aminophenol sulfamide Benzenesulfonamide, 3-amino-4-hydroxy- EINECS 202-657-0 Metanilamide, 4-hydroxy- (8CI) NSC 4976 o-Aminophenol-p-sulfonamide