((4-(4-Pentyl-2,6,7-trioxabicyclo(2.2.2)oct-1-yl)phenyl)ethynyl)trimethylsilane 108614-16-0 Silane, ((4-(4-pentyl-2,6,7-trioxabicyclo(2.2.2)oct-1-yl)phenyl)ethynyl)trimethyl-