Poly[[aqua­(μ(4)-1H-benzimidazole-5,6-dicarboxyl­ato-κ(4) N (3):O (5):O (5′):O (6))(N,N-dimethyl­formamide-κO)cadmium(II)] dihydrate]

In the title compound, {[Cd(C(9)H(4)N(2)O(4))(C(3)H(7)NO)(H(2)O)]·2H(2)O}(n), the Cd(II) atom is coordinated by one N atom and three O atoms from four different 1H-benzimidazole-5,6-dicarboxyl­ate (Hbidc) ligands, one O atom from one dimethyl­formamide ligand, and one O atom from a water mol­ecule in a distorted octa­hedral geometry. The Hbidc ligands connect the Cd atoms into a two-dimensional network parallel to (001). N—H⋯O and O—H⋯O hydrogen bonds involving the water molecules are observed in the crystal structure.