title: 5-Benzene-sulfonamido-2-chloro-benzoic acid.
abstract: In the title compound, C(13)H(10)ClNO(4)S, the dihedral angle between the aromatic ring planes is 87.07 (6)° and an intra-molecular C-H⋯O inter-action 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.
authors.forename: Muhammad Nadeem
authors.initials: MN
authors.lastname: Arshad
authors.forename: M Nawaz
authors.initials: MN
authors.lastname: Tahir
authors.forename: Islam Ullah
authors.initials: IU
authors.lastname: Khan
authors.forename: Muhammad
authors.initials: M
authors.lastname: Shafiq
authors.forename: Hafiz Muhammad Adeel
authors.initials: HM
authors.lastname: Sharif