1,3,5-Trioxa-2,4,6-trigermacyclohexane, 2,2,4,4,6,6-hexabutyl- 2,2,4,4,6,6-Hexabutyl-1,3,5-trioxa-2,4,6-trigermacyclohexane 3124-24-1 BRN 4147457 Hexabutylcyclotrigermoxane