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N2,N2,N4,N4,N6,N6,N8,N8-octaethyl-1,3,5,7-tetraza-2$l^{5},4$l^{5},6$l^ {5},8$l^{5}-tetraphosphacycloocta-1,3,5,7-tetraene-2,2,4,4,6,6,8,8-oct amine related products: