The title dithiocarbazate imine, C11H11N3OS2, was obtained from the condensation reaction of S-methyldithiocarbazate (SMDTC) and 5-methylisatin. It shows a Z configuration about the imine C=N bond, which is associated with an intramolecular N—H...O hydrogen bond that closes an S(6) ring. In the crystal, inversion dimers linked by pairwise N—H...O hydrogen bonds generate R22(8) loops. The extended structure features C—H...S contacts as well as reciprocal carbonyl–carbonyl (C=O...C=O) interactions.
