3-(1,3-benzoxazol-2-ylsulfanyl)-4H-chromen-4-one

In the molecule of the title compound, C16H9NO3S, the two fused ring systems are each planar and make a dihedral angle of 78.0 (1)degrees with each other. In the crystal structure, intermolecular C-H center dot center dot center dot O hydrogen bonds link the molecules into chains along the b axis and there are also pi-pi stacking interactions. The distance between the adjacent ring centroids of the benzoxazole system is 3.89 (1) angstrom (symmetry code linking the adjacent rings: 1 - x, 1 - y, 1 - z). A further interaction occurs between two adjacent six-membered benzoxazole benzene rings (symmetry code: 1 - x, - y, 1 - z), with a centroid -to-centroid distance of 3.93 (1) angstrom.