Poly[[aqua(μ4-1H-benzimidazole-5,6-dicarboxylato-κ4N3:O5:O5′:O6)(N,N-dimethylformamide-κO)cadmium(II)] dihydrate]

In the title compound, {[Cd(C9H4N2O4)(C3H7NO)(H2O)]·2H2O}n, the CdII 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.