In the title compound, C(24)H(16)O(2)S, the O atom and the phenyl group of the phenyl-sulfinyl substituent lie on opposite sides of the plane of the naphthofuran fragment; the phenyl ring is almost perpendicular to this plane [82.34 (5)°]. The 2-phenyl ring is rotated out of the naphthofuran plane making a dihedral angle of 48.21 (6)°. The crystal structure shows π-π inter-actions between the central benzene rings of adjacent mol-ecules [centroid-centroid distance = 3.516 (3) Å], as well as non-classical C-H⋯O hydrogen bonds.