In the title compound, C(14)H(10)N(2)O(2)S, the benzothia-zole and quinazoline ring systems are essentially planar with maximum deviations of 0.0127 (16) and 0.1588 (15) Å, respectively, and make a dihedral angleof 3.02 (5)°, which shows that the entire mol-ecule is almost planar. The O atoms deviate from the benzothia-zole ring system by 1.2231 (14) and -1.1989 (15) Å. The crystal packing features non-classical C-H⋯O hydrogen bonds and is further consolidated by π-π inter-actions [centroid-centroid distances = 3.7568 (8) and 3.8848 (9) Å].