title: 2-(4-Bromo-benzene-sulfonamido)acetic acid.
abstract: The title compound, C(8)H(8)BrNO(4)S, a halogenated sulfon-amide, was prepared by basic hydrolysis of the methyl ester. In the crystal, mol-ecules form centrosymmetric hydrogen-bonded dimers via the carboxyl groups. These dimers are further linked by N-H⋯O inter-actions involving the carbonyl O and amide H atoms, forming a ribbon-like structure propagating in [010]. These ribbons are further linked via C-H⋯O inter-actions, forming a three-dimensional network.
authors.forename: Muhammad Nadeem
authors.initials: MN
authors.lastname: Arshad
authors.forename: Islam Ullah
authors.initials: IU
authors.lastname: Khan
authors.forename: Muhammad
authors.initials: M
authors.lastname: Shafiq
authors.forename: Muhammad Naeem
authors.initials: MN
authors.lastname: Khan
authors.forename: Helen
authors.initials: H
authors.lastname: Stoeckli-Evans