2-(Benzenesulfonamido)acetic acid

Abstract

The title compound, C8H9NO4S, is of interest as a precursor to biologically active sulfur-containing heterocyclic cmpounds. The crystal structure displays the classical O—H...O intermolecular hydrogen bonding typical for carboxylic acids forming dimers. Symmetry-related dimers are, in turn, linked through head-to-tail pairs of intermolecular N—H...O interactions, giving rise to a zigzag chain along the c axis.