4-[5-(4-Formyl­phen­oxy)pent­oxy]benzaldehyde

In the title compound, C₂₀H₁₉O₄, the benzene rings, linked via five methyl­ene C atoms, form a dihedral angle of 77.28 (6)°. In the crystal, mol­ecules are linked via pairs of weak C—H...O inter­actions [graph set R₂²(6)] into dimers that are further connected by additional weak C—H...O interactions [graph sets R₂²(14), R₂²(26) and R₂²(6)].