9-(3,4-Dimeth-oxy-phen-yl)-3,4,5,6,7,9-hexa-hydroxanthene-1,8(2H)-dione.

ABSTRACT: In the title compound, C(21)H(22)O(5), the mean planes of the pyran and dimeth-oxy-phenyl rings are nearly perpendicular to one another, with the dihedral angle between them being 88.21 (8)°. The pyran ring adopts a boat conformation whereas the two fused cyclo-hexane rings adopt envelope conformations. In the crystal, mol-ecules are linked into a three-dimensional network by inter-molecular C-H⋯O hydrogen bonds.

SUBMITTER: Mehdi SH 

PROVIDER: S-EPMC3120437 | biostudies-literature | 2011 Jun

REPOSITORIES: biostudies-literature