3-(2,3-Di-meth-oxy-phen-yl)-2,3-di-hydro-1H-benzo[f]chromen-1-one.

In the title compound, C21H18O4, 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 meth-oxy 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.