12-(2-Hy­droxy-6-oxo­cyclo­hex-1-en­yl)-9,10-di­hydro-8H-benzo[a]xanthen-11(12H)-one

In the xanthenone system of the title compound, C(23)H(20)O(4), the pyran ring has a maximum deviation of 0.111 (1) Å from planarity and the outer cyclo­hexene ring exhibits a puckered conformation. The three methyl­ene C atoms of the cyclo­hexene ring bonded to the pyran unit are disordered over two sets of sites [occupancies = 0.570 (3) and 0.430 (3)]. In the crystal, mol­ecules are linked by C—H⋯O and O—H⋯O hydrogen bonds, forming a two-dimensional network parallel to (110). A C—H⋯π inter­action occurs between these networks.