358-21-4 4-02-00-00469 (Beilstein Handbook Reference) BRN 1785482 Bis(pentafluoroethyl) ether ETHER, BIS(PENTAFLUOROETHYL) Ethane, 1,1'-oxybis(1,1,2,2,2-pentafluoro- (9CI) Perfluorodiethyl ester Perfluoroethyl ether