title: 4,4'-Dimethyl-2,2'-[imidazolidine-1,3-diylbis(methyl-ene)]diphenol.
abstract: The imidazolidine ring in the title compound, C(19)H(24)N(2)O(2), adopts a twist conformation and its mean plane (r.m.s. deviation = 0.19 Å) makes dihedral angles of 72.38 (9) and 71.64 (9)° with the two pendant aromatic rings. The dihedral angle between the phenyl rings is 55.94 (8)°. The mol-ecular structure shows the presence of two intra-molecular O-H⋯N hydrogen bonds between the phenolic hydroxyl groups and N atoms with graph-set motif S(6). In the crystal, C-H⋯O hydrogen bonds lead to the formation of chains along the b-axis direction.
authors.affiliation: Universidad Nacional de Colombia, Sede Bogotá, Facultad de Ciencias, Departamento de Química, Cra 30 No.45-03, Bogotá, Código Postal 111321,  Colombia.
authors.forename: Augusto
authors.initials: A
authors.lastname: Rivera
authors.forename: Luz Stella
authors.initials: LS
authors.lastname: Nerio
authors.forename: Jaime
authors.initials: J
authors.lastname: Ríos-Motta
authors.forename: Monika
authors.initials: M
authors.lastname: Kučeraková
authors.forename: Michal
authors.initials: M
authors.lastname: Dušek