1-(3-Chlorobenzyl)-5-iodoindoline-2,3-dione

In the title compound, C15H9ClINO2, which possesses anticonvulsant activity, the iodoindoline ring system is essentially planar (maximum deviation 1.245 Å) and is oriented with respect to the 3-chlorobenzyl ring at a dihedral angle of 76.59 (3)°. In the crystal, there is a π–π contact between iodoindoline ring systems [centroid–centroid distance = 3.8188 (4) Å].