2-(3-Oxo-2,3-dihydro-1,2-benzothiazol-2-yl)acetic acid

Abstract

In the title compound, C9H7NO3S, the benzoisothiazolone ring system is essentially planar, with a maximum deviation of 0.013 (2) Å. In the crystal, molecules are linked via O—H...O hydrogen bonds, forming chains along [010]. In addition, weak intermolecular C—H...O hydrogen bonds are present.