2-Benzenesulfonamido-3-methylbutyric acid

Abstract

In the crystal structure of the title compound, C11H15NO4S, two independent molecules are present per asymmetric unit; they are dimerized through O—H...O hydrogen bonds between their carboxy groups to generate R22(8) loops. An intramolecular N—H...O link in one of the molecules closes an S(5) ring. The dimers are linked by N—H...O and C—H...O hydrogen bonds to form a three-dimensional network. The C atoms of the isopropyl group of one of the molecules are disordered over two orientations in a 3:1 ratio.