17962-31-1 2,4,4,6,6-Pentamethyl-2-phenylcyclotrisiloxane BRN 2286052 CYCLOTRISILOXANE, 2,4,4,6,6-PENTAMETHYL-2-PHENYL- Cyclotrisiloxane, pentamethylphenyl- (6CI,8CI,9CI) Pentamethylphenylcyclotrisiloxane Phenylpentamethylcyclotrisiloxane