title: 2-(2-Iodo-benzenesulfonamido)acetic acid.
abstract: The title compound, C(8)H(8)INO(4)S, is a halogenated sulfon-amide, a medicinally important class of organic compounds. In the crystal structure, inter-molecular O-H⋯O hydrogen bonds involving the carboxylic acid groups form characteristic centrosymmetric dimers. These dimers are further linked through centrosymmetric dimeric N-H⋯O inter-actions involving the amido H atom and a sulfonyl O atom. This leads to the formation of a ribbon-like polymer structure propagating in the b direction.
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: Azam
authors.initials: A
authors.lastname: Mukhtar