((4-(4-Propyl-2,6,7-trioxabicyclo(2.2.2)oct-1-yl)phenyl)ethynyl)trimethylgermane 134134-09-1 Germane, (((4-propyl-2,6,7-trioxabicyclo(2.2.2)oct-1-yl)phenyl)ethynyl)trimethyl-