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Acta Cryst. (2013). E69, o1347  [ doi:10.1107/S1600536813020357 ]


J. H. Cha, J. K. Lee, S.-J. Min, Y. S. Cho and J. Park

Abstract: The title compound, C25H29ClO4, adopts a trans conformation about the C=C double bond and the dimethylcyclohexenone rings both show an envelope conformation with the dimethyl-substituted C atom as the flap. In the molecule, the hydroxy and carbonyl groups form two intramolecular O-H...O hydrogen bonds typical for xanthene derivatives. In the crystal, weak C-H...O hydrogen bonds link the molecules into chains running parallel to the a-axis direction.

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