Acta Cryst. (2013). E69, o629 [ doi:10.1107/S1600536813007964 ]
Abstract: There are two conformationally similar molecules in the asymmetric unit of he title compound, C18H18O4, in which the dihedral angles between the benzene rings are 23.54 (12) and 31.11 (12)°. In the crystal, C-H interactions (minimum Hring centroid distance = 2.66 Å) link the molecules into a layered structure extending down a.
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