The title compound, C20H32N2O2S2, has been synthesized by the reaction of α-methylsulfanylcyclododecanone and p-toluenesulfonylhydrazine. In the crystal structure, the conformation of the non-benzenoid ring is [3333] and the methylsulfanyl group is in the α-side exo position. The molecules are linked by intermolecular N—H⋯S hydrogen bonds