Synonyms: 1,3-Propanediol,2-ethyl-2-[[3-[[(heptacyclopentylpentacyclo[9.5.1.13,9.15,15.17,13]octasiloxanyl)oxy]dimethylsilyl]propoxy]methyl]-(9CI);1-[3-(1,3-Propanediol-2-ethyl-2-methyloxy)propyldimethylsiloxy]-3,5,7,9,11,13,15-heptacyclopentylpentacyclo[9.5.1.13,9.15,15.17,13]octasiloxane;1-[3-(1',3'-Propanediol-2'-ethyl-2'-methoxy)propyldimethylsiloxy]-3,5,7,9,11,13,15-heptacyclopentylpentacyclo[9.5.1.13,9.15,15.17,13]siloxane