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