Tris[2-(2,6-dioxo-4-methyl-1,2,3,6-tetrahydropyrimidin-1-yl)ethylamino]phosphine sulfide

trisodium bis[2-(4-methyl-2,6-dioxo-3H-pyrimidin-1-yl)ethylazanidyl]ph osphinothioyl-[2-(4-methyl-2,6-dioxo-3H-pyrimidin-1-yl)ethyl]azanide