Synonyms: 2λ5,4λ5,6λ5-1,3,5,2,4,6-Triazatriphosphorine, 2,2,4,4,6,6-hexamethoxy-, 1,3,5,2,4,6-Triazatriphosphorine, 2,2,4,4,6,6-hexahydro-2,2,4,4,6,6-hexamethoxy- (7CI,8CI,9CI); Dimethyl metaphosphimate, trimer(6CI); 2,2,4,4,6,6-Hexamethoxy-2λ5,4λ5,6λ5-1,3,5,2,4,6-triazatriphosphorine; 2,2,4,4,6,6-Hexahydro-2,2,4,4,6,6-hexamethoxy-1,3,5,2,4,6-triazatriphosphorine; Cyclotris(dimethoxyphosphazene); Hexamethoxycyclotriphosphazene