trans-N,N,N′,N′-Tetra­kis(carboxy­meth­yl)cyclo­hexane-1,2-diammonium tetra­chloridocadmium(II) tetra­hydrate

In the title compound, (C(14)H(24)N(2)O(8))[CdCl(4)]·4H(2)O, the Cd atom in the tetra­hedral [CdCl(4)](2−) anion lies on a twofold rotation axis, and the diprotonated organic mol­ecule, trans-N,N,N′,N′-tetra­kis(carb­oxy­meth­yl)cyclo­hexane-1,2-diammon­ium, has 2 symmetry with the twofold rotation axis running through the mid-point of two C—C bonds in the cyclo­hexane unit. In the crystal structure, classical intra­molecular O—H⋯O and N—H⋯O and inter­molecular O—H⋯O, N—H⋯O, O—H⋯Cl and C—H⋯Cl hydrogen bonds are observed.