Abstract
In the title compound, C13H19N3S, the methylamine substituent is coplanar with the thiadiazole ring to which it is attached [C-N-C-S torsion angle = 175.9 (2)degrees] and the amine H atom is syn to the thiadiazole S atom. Supramolecular chains along [101], sustained by N-H center dot center dot center dot N hydrogen bonding, feature in the crystal packing.