1129-26-6 4-11-00-00588 (Beilstein Handbook Reference) 4-Methoxybenzenesulfonamide BRN 2047881 Benzenesulfonamide, 4-methoxy- Benzenesulfonamide, p-methoxy- (6CI,7CI,8CI) p-Methoxybenzenesulfonamide