Abstract
In the molecule of the title compound, C
13
H
9
ClINO
4
S, the coordination around the S atom is distorted tetrahedral. The aromatic rings are oriented at a dihedral angle of 74.46 (9)°. Intramolecular C—H⋯O hydrogen bonds result in the formation of two five- and one six-membered rings, which adopt planar, envelope and twisted conformations, respectively. In the crystal structure, intermolecular N—H⋯O and O—H⋯O hydrogen bonds link the molecules to form
R
2
2
(8) ring motifs, which are further linked by C—H⋯O hydrogen bonds. π–π contacts between the benzene rings [centroid–centroid distances = 3.709 (3) and 3.772 (3) Å] may further stabilize the structure. The I atom is disordered over two positions, refined with occupancies of
ca
0.75 and 0.25.