The title compound, C20H21N3OS, was prepared by Huisgen reaction of 5-(4-hexyl-oxyphen-yl)tetra-zole and chloro-benzo-thia-zole. The essentially planar benzo-thia-zolotriazole 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 hex-yloxy chain adopts a gauche-all-anti conformation. The intra-centroid separation of 3.7258 (8) Å between the triazole and benzene rings is the closest contact between individual mol-ecules in the crystal.