In the asymmetric unit of the title compound. catena-poly[[diaquamagnesium(II)]-μ-oxalato]. [Mg(C2O4)(H2O)2]n. there is one Mg atom in an octahedral coordination with site symmetry 222. https://www.bekindtopets.com/huge-sale-UT-Solution-Gel-for-Cats-super-grab/