In the title compound, C(18)H(17)N(3)O·0.5C(2)H(5)OH, the dihedral angles between the central imidazole rings and the pendant benzene rings are 42.06 (15) and 2.01 (16)° in one asymmetric mol-ecule and 47.91 (15) and 7.31 (14)° in the other. An intra-molecular N-H⋯O hydrogen bond occurs in each imidazole mol-ecule. In the crystal, the components are connected by O-H⋯N, N-H⋯O, C-H⋯O and N-H⋯N hydrogen bonds. Weak aromatic π-π inter-actions also occur [shortest centroid-centroid distance = 3.684 (3) Å].