5-Benzenesulfonamido-2-chlorobenzoic acid

In the title compound, C13H10ClNO4S, the dihedral angle between the aromatic ring planes is 87.07 (6)° and an intramolecular C—H⋯O interaction occurs. In the crystal, inversion dimers linked by two O—H⋯O hydrogen bonds arise from the carboxyl groups. N—H⋯O hydrogen bonds link the dimers into chains and short C—Cl⋯π and S—O⋯π contacts are also seen.

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