4-aminobenzenesulfonamide 63-74-1 BENZENESULFONIC ACID,4-AMINO,AMIDE SULFANILAMIDE InChI=1/C6H8N2O2S/c7-5-1-3-6(4-2-5)11(8,9)10/h1-4H,7H2,(H2,8,9,10 benzenesulfonamide, 4-amino-