In the title compound, C(16)H(13)N(3)S(2), the dihedral angle between the two benzothia-zole ring systems is 20.41 (2)°. In the crystal structure, inter-molecular N-H⋯N hydrogen bonds link mol-ecules into a chain along the b axis. The packing is further stabilized by C-H⋯π stacking inter-actions involving the two benzothia-zole ring systems.