1,1,2,2Tetrafluoroethyl 2,2,2Trifluoroethyl Ether, >99.0% (GC), C4H3F7O, CAS Number406780, 25g, 56 deg.C, Yellow, (2)3983, 200.06, CWIFAKBLLXGZICUHFFFAOYSAN, 1,1,2,2tetrafluoro1(2,2,2trifluoroethoxy)ethane, MFCD00236118, 200.056, Clear Liquid at 20 d