Synonyms: Octasilsesquioxane,octamethyl- (6CI);Pentacyclo[9.5.1.13,9.15,15.17,13]octasiloxane, octamethyl-(7CI,9CI);1,3,5,7,9,11,13,15-Octamethylpentacyclo[9.5.1.13,9.15,15.17,13]octasiloxane;MS0830;Methyl-T 8;Molecular Silicas MS 0830;OctaMethyl-POSS;Octamethylpentacyclo[9.5.1.13,9.15,15.17,13]octasiloxane;