1-Cyclo-hexyl-2-(3-fur-yl)-1H-benzimidazole-5-carboxylic acid.

The asymmetric unit of the title compound, C(18)H(18)N(2)O(3), contains two mol-ecules. The fused rings of both mol-ecules are almost planar, with dihedral angles of 3.1†(1) and 2.8†(2)° between the fused rings. The furan rings are rotated by 43.85†(15) and -21.07†(9)° with respect to the planes of the attached bnzimidazole systems. In the crystal, mol-ecules are linked into infinite chains by inter-molecular O-H⋯N hydrogen bonds.