00575001_00600000/586944 3-amino-4-hydroxybenzenesulfonic acid 98-37-3 BENZENESULFONIC ACID,3-AMINO,4-HYDROXY 2-AMINO,4-SULFOPHENOL InChI=1/C6H7NO4S/c7-5-3-4(12(9,10)11)1-2-6(5)8/h1-3,8H,7H2,(H,9,10,11 benzenesulfonic acid, 3-amino-4-hydroxy-