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

trisodium bis[2-(2,6-dioxo-3H-pyrimidin-1-yl)ethylazanidyl]phosphinoth ioyl-[2-(2,6-dioxo-3H-pyrimidin-1-yl)ethyl]azanide