2-[1-(4--Butyl-phen-yl)-4,5-diphenyl-1-imid-azol-2-yl]-4,6-di-chloro-phenol.

In the title compound, CHClNO, the 4,6-di-chloro-phenol and the imidazole rings are almost coplanar, with a dihedral angle of 8.89 (6)° between them and an intra-molecular O-H⋯N hydrogen bond occurs between the rings. The dihedral angles subtended by the -butyl-phenyl ring and the two phenyl rings with the imidazole ring are 85.18 (9), 81.22 (9) and 19.00 (8)°, respectively. The methyl groups of the -butyl grouping are disordered over two sets of sites in 0.589 (5):0.411 (5) ratio. In the crystal, inversion dimers linked by pairs of weak C-H⋯Cl inter-actions generate (24) loops.