N1,N1,N1,N1,N3,N3,N3,N3-octamethyl-1$l^{5},3$l^{5}-diphosphacyclobuta-1,3-diene-1,1,3,3-tetramine;dimethyl-[1,3,3-tris(dimethylamino)-1$l^{5},3$l^{5}-diphosphacyclobuta-1,3-dien-1-yl]amine;103678-18-8;1,3-Diphosphacyclobutadiene, 1,1,3,3-tetra(dimethylamino)-
N1,N1,N1,N1,N3,N3,N3,N3-octamethyl-1$l^{5},3$l^{5}-diphosphacyclobuta-1,3-diene-1,1,3,3-tetramine