1,3,5,7-Tetraphenyl-3,7-dithio-1,5-diaza-3,7-diphosphacyclooctane 1,5,3,7-Diazadiphosphocine, octahydro-1,3,5,7-tetraphenyl-, 3,7-disulfide 85684-40-8 BRN 5169365 Octahydro-1,3,5,7-tetraphenyl-1,5,3,7-diazadiphosphocine 3,7-disulfide