2 2 2 trifluoroethyl 2 2 2 trifluoroacetate July 8, 2019 16 32 64 128 2 2 2-trifluoroethyl acetate 2 2 2-trifluoroethyl trifluoromethanesulfonate 2 2 2-trifluoroethyl formate 2 2 2-trifluoroacetic acid 2 2 2-trifluoroacetone