Abstract
The title compound, C
8
H
8
INO
4
S, is a halogenated sulfonamide, a medicinally important class of organic compounds. In the crystal structure, intermolecular 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 interactions 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.