1,1,5,5,5-Hexamethyl-3-phenyl-3-((trimethylsilyl)oxy)trisiloxane 2116-84-9 9076-37-3 DC 556 Dow 556 Fluid Dow Corning 556 EINECS 218-320-6 Methyl phenyl polysiloxane Phenyl trimethicone Phenyl trimethyl siloxane Phenyltris(trimethylsiloxyl)silane Polyphenylmethyl siloxane Silicone DC 556 Tris(trimethylsiloxy)phenylsilane Trisiloxane, 1,1,1,5,5,5-hexamethyl-3-phenyl-3-((trimethylsilyl)oxy)-