SMILES: C1=CC(=CC=C1C(=O)O)NS(=O)(=O)C2=CC=C(C=C2)N
Description: The molecule is a sulfonamide that is sulfanilamide substituted at the sulfonamide nitrogen by a 4-carboxyphenyl group. It has a role as an allergen. It is a sulfonamide and a member of benzoic acids. It derives from a sulfanilamide.