4,4,4′,4′,7,7′-Hexamethyl-2,2′-spirobichroman

The title compound, C₂₃H₂₈O₂, was obtained from the reaction of acetone with meta-cresol. The molecular structure consists of two identical subunits which are nearly perpendicular to each other. The oxygen-containing rings are not planar and the molecule is chiral. The crystal structure consists of chains of molecules of the same chirality arranged along the [010] axis.