In the title compound. [Co(H2O)6][Ni(C12H11N2O5)]2·6H2O. the NiII atom has a nearly square-planar coordination with two N and two O atoms of the N-(4-methoxy-2-oxidobenzylidene)glycylglycinate Schiff base ligand (L3−). The CoII atom sits on an inversion center and is coordinated to six aqua ligands in a slightly distorted octahedral geometry. https://pipingrockers.shop/product-category/chanca-piedra/