3-(2,3-Di­meth­oxy­phen­yl)-2,3-di­hydro-1H-benzo[f]chromen-1-one

In the title compound, C(21)H(18)O(4), the central pyran ring is in an envelope conformation and the dihedral angle between the benzene ring and naphthalene ring system is 88.31 (1)°. The meth­oxy groups at the ortho and meta positions of the benzene ring are tilted to the ring with C—C—O—C torsion angles of 105.9 (4) and 9.5 (5)°, respectively. In the crystal, pairwise C—H⋯O hydrogen bonds form R (2) (2)(14) inversion dimers, which are linked by another pair of C—H⋯O hydrogen bonds to form [210] chains in the crystal. [Image: see text]