Acta Cryst. (2012). E68, o3247-o3248 [ doi:10.1107/S1600536812043796 ]
Abstract: In the title compound, C21H18O4, the outer benzyl rings are disordered over two resolved positions in a 0.50 ratio. The O-CH2 groups form dihedral angles of 4.1 (2) and 10.9 (4)° with the central benzene ring, adopting a syn-anti conformation with respect to this ring. In the crystal, the molecules are linked by O-HO hydrogen bonds and weak C-HO interactions, forming chains along .
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