Acta Cryst. (2005). E61, o3582-o3583  [ doi:10.1107/S1600536805031600 ]

1,6-Dimethylphenanthro[1,2-b]furan-10,11-dione

L. Zhang, J.-K. Wang, Y. Qu and Q. Nie

Abstract: The title compound, C₁₈H₁₂O₃, also known as tanshinone, contains four fused rings. The crystal packing involves offset -stacking interactions and C-HO hydrogen bonds.

Online 8 October 2005

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