Synonyms: Pentacyclo[9.5.1.13,9.15,15.17,13]octasiloxane,[[(2-bicyclo[2.2.1]hept-5-en-2-ylethyl)dimethylsilyl]oxy]heptacyclopentyl-(9CI);1-[2-(Norbornen-5-yl)ethyldimethylsiloxy]-3,5,7,9,11,13,15-heptacyclopentylpentacyclo[9.5.1.13,9.15,15.17,13]-octasiloxane