1 ICF 1-chloro-2,2,2-trifluoroethyl difluoromethyl ether 1.000 2 4LE (2r)-2-chloro-2-(difluoromethoxy)-1,1,1-trifluoroethane 1.000 3 DFE 2-(1,1-difluoroethoxy)-1,1,1-trifluoroethane 0.818 4 DSF (2s)-2-(difluoromethoxy)-1,1,1,2-tetrafluoroethane 0.818