133586-94-4 4',4',6',6'-Tetrakis(1-aziridinyl)-1,3,4',4',6',6'-hexahydrospiro(2H-1,3,2-benzodiazaphosphole-2,2'-lambda(5)(1,3,5,2,4,6)triazatriphosphorine) Spiro(2H-1,3,2-benzodiazaphosphole-2,2'lambda5-(1,3,5,2,4,6)triazotriphosphorine), 4',4',6',6'-tetrakis(1-aziridinyl)-1,1',4',4',6',6'-hexahydro-