1,3,5,7,2,4,6,8-Tetraoxatetragermocane, 2,2,4,4,6,6,8,8-octaethyl- 2,2,4,4,6,6,8,8-Octaethyl-1,3,5,7,2,4,6,8-tetraoxatetragermocane 27141-23-7 BRN 4143603 Octaethylcyclotetragermoxane Octaethyltetracyclogermoxane