2,2′-[Ethylenebis(azanediylmethylene)]diphenol

In the title compound, C16H20N2O4, the molecule features a zigzag –CH2–NH–CH2–CH2–NH–CH2– chain whose ends are connected to the hydroxyphenyl rings. The molecules lies about a center of inversion. The imino group is a hydrogen-bond donor for the hydroxy group, which is a hydrogen-bond donor for the imino group of an adjacent molecule. This latter intermolecular hydrogen bonding leads to a layer structure.