title: 9-(4-Hy-droxy-phen-yl)-3,3,6,6-tetra-methyl-4,5,6,9-tetra-hydro-3H-xanthene-1,8(2H,7H)-dione.
abstract: In the title compound, C(23)H(26)O(4), the two cyclo-hexene rings adopt envelope conformations whereas the pyran ring adopts a boat conformation. In the crystal, pairs of inter-molecular O-H⋯O hydrogen bonds link the mol-ecules into inversion dimers.
authors.forename: Hoong-Kun
authors.initials: HK
authors.lastname: Fun
authors.forename: Wan-Sin
authors.initials: WS
authors.lastname: Loh
authors.forename: K
authors.initials: K
authors.lastname: Rajesh
authors.forename: V
authors.initials: V
authors.lastname: Vijayakumar
authors.forename: S
authors.initials: S
authors.lastname: Sarveswari
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