5-(aminosulfonyl)-2,4-dichlorobenzoic acid InChI=1/C7H5Cl2NO4S/c8-4-2-5(9)6(15(10,13)14)1-3(4)7(11)12/h1-2H,(H,11,12)(H2,10,13,14 benzoic acid, 5-(aminosulfonyl)-2,4-dichloro-