1,3,5-Diazaphosphorine, hexahydro-1,3-bis(4-bromophenyl)-5-phenyl-, 5-sulfide 74607-66-2 BRN 5136123 Hexahydro-1,3-bis(4-bromophenyl)-5-phenyl-1,3,5-diazaphosphorine 5-sulfide