6,6′-Di-tert-butyl-4,4′-dimethyl-2,2′-[1,2-phenyl­enebis(nitrilo­methanylyl­idene)]diphenol

In the title mol­ecule, C₃₀H₃₆N₂O₂, the dihedral angles between the central benzene ring and the two benzene rings of the butyl­salicylaldimine groups are 14.3 (2) and 40.6 (2)°. There are two strong intra­molecular O—H...N hydrogen bonds which form S(6) rings. The crystal studied was a non-merohedral twin with refined components of 0.270 (4) and 0.730 (4).