In the title compound, C25H36N2O2, the two tert-butyl-substituted benzene rings are inclined at an angle of 53.5 (3)° to one another. The imidazolidine ring has an envelope conformation with with one of the C atoms of the ethylene fragment as the flap. The structure displays two intra-molecular O-H⋯N hydrogen bonds that generate S(6) ring motifs. The crystal studied was a non-merohedral twin with a fractional contribution of 0.281(6) for the minor domain.

DOI: 10.1107/S1600536813017157

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@inproceedings{Rivera201344Ditertbutyl22imidazolidine13diylb, title={4,4′-Di-tert-butyl-2,2′-[imidazolidine-1,3-diylbis(methyl­ene)]diphenol}, author={Augusto Rivera and Luz Stella Nerio and Michael Bolte}, booktitle={Acta crystallographica. Section E, Structure reports online}, year={2013} }