Bis(5-amino-1H-tetra­zole-κN (4))di­aqua­(oxalato-κ(2) O (1),O (2))cadmium

In the monomeric title complex, [Cd(C(2)O(4))(CH(3)N(5))(2)(H(2)O)(2)], the Cd(II) ion exhibits a distorted octa­hedral coordination geometry, with the equatorial plane defined by two O atoms from an oxalate ligand and two N atoms from two 5-amino-1H-tetra­zole ligands; the axial sites are occupied by two water mol­ecules, with longer Cd—O bond lengths. An intra­molecular N—H⋯O hydrogen bond occurs. In the crystal, N—H⋯O as well as O—H⋯O and O—H⋯N hydrogen bonds (some of which are bifurcated) link the complex mol­ecules into a three-dimensional network.