2-Sulfobenzoic acid, ORTHO-SULPHOBENZOICACID, 2-SULFOBENZOIC ACID UNHYDRATE, 2-sulfobenzenecarboxylic acid, Benzoic acid, 2-sulfo-; 2-Carboxybenzenesulfonic acid; 2-Carboxybenzenesulphonic acid; ortho-sulfobenzoic acid; sulfobenzoic acid; 2-sulphobenzoic acid; 2-sulfo-benzoicaci; o-Carboxybenzenesulfonic acid; hydroxysulfonylbenzoic acid; O-SULFOBENZOIC ACID;