1,3,5,7,12-Pentaaza-2,4,6-triphospha(6-PV)spiro(5.6)dodeca-1,3,5-triene, 2,2,4,4-tetrakis(1-aziridinyl)-2,2,4,4-tetrahydro-
1,3,5,7,12-pentaaza-2,4,6-triphospha(6-pv)spiro(5.6)dodeca-1,3,5-triene, 2,2,4,4-tetrakis(1-aziridinyl)-2,2,4,4-tetrahydro-