4,4′-Methylenebis[N-(2-hydroxy-3-methoxybenzylidene)-2,6-diisopropylaniline]

In the V-shaped title Schiff base, C41H50N2O4, the planes of the benzene rings of the central diphenylmethane unit make a dihedral angle of 70.40 (5)°, whereas the planes of the neighbouring benzene and ortho-vanilin rings are twisted with respect to one another by dihedral angles of 75.76 (5) and 73.89 (6)°. The Schiff base displays intramolecular O - HN hydrogen bonds and weak intermolecular C - HO contacts.