Acta Cryst. (2012). E68, o1060 [ doi:10.1107/S1600536812010410 ]
Abstract: In the title compound, C25H30O6, the two fused cyclohexanone rings have envelope conformations, whereas the central pyran ring is roughly planar [mximum deviation = 0.045 (2) Å]. The pyran and benzene rings are almost perpendicular to each other, making a dihedral angle of 86.32 (2)°. In the crystal, molecules are linked via pairs of O-HO hydrogen bonds, forming inversion dimers.
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