Synonyms: Pentacyclo[9.5.1.13,9.15,15.17,13]octasiloxanebutanenitrile,3,5,7,9,11,13,15-heptacyclopentyl- (9CI);1-(3-Cyanopropyl)-3,5,7,9,11,13,15-heptacyclopentylpentacyclo[9.5.1.13,9.15,15.17,13]octasiloxane;CyanopropylCyclopentyl-POSS; POSS-NI 0910