3-(4-Hexyl­oxyphen­yl)-1,2,4-triazolo[3,4-b]benzo­thia­zole

The title compound, C(20)H(21)N(3)OS, was prepared by Huisgen reaction of 5-(4-hexyl­oxyphen­yl)tetra­zole and chloro­benzo­thia­zole. The essentially planar benzo­thia­zolotriazole framework [maximum deviation from the mean plane of 0.077 (1) Å for the bridgehead N atom] and the phenyl ring form a dihedral angle of 53.34 (5)°. The hex­yloxy chain adopts a gauche–all-anti conformation. The intra­centroid separation of 3.7258 (8) Å between the triazole and benzene rings is the closest contact between individual mol­ecules in the crystal.