14621-11-5 2,2,4,4,6,6,8,8-Octabromo-2,2,4,4,6,6,8,8-octahydro-1,3,5,7,2,4,6,8-tetraazatetraphosphocine Cyclo-tetrakis(dibromophosphonitrile) EINECS 238-661-4