24962-75-2 3-Amino-4-hydroxy-N,N-dimethylbenzenesulfonamide 3-Amino-4-hydroxy-N,N-dimethylbenzenesulphonamide 79-99-2 Benzenesulfonamide, 3-amino-4-hydroxy-N,N-dimethyl- EINECS 246-548-6