4-(4-Propoxybenzo­yloxy)benzoic acid

Abstract

The title compound, C17H16O5, is an important inter­mediate for the synthesis of side-chain ligands for polymeric liquid crystals. The prop­oxy and benzoic acid groups subtend dihedral angles of 4.36 (6) and 55.35 (6)°, respectively, with the central benzo­yloxy unit. The crystal structure is stabilized by an inter­molecular O—H⋯O hydrogen bond