2-(2-Iodobenzenesulfonamido)acetic acid

The title compound, C8H8INO4S, 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.

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