4,4'-Dimethyl-2,2'-[1,2-phenyl-enebis(nitrilo-methyl-idyne)]diphenol.

In the title Schiff base, C(22)H(20)N(2)O(2), the benzene ring forms dihedral angles of 53.92†(1) and 3.62†(1)° with the two salicylaldimine groups. There are two strong O-H⋯N intra-molecular hydrogen bonds. The crystal packing is stabilized by weak inter-molecular C-H⋯O hydrogen bonds and π-π stacking inter-actions (average distance 3.39†à ).