methyl 2,2,3,3,4,4-hexafluoro-4-[1,2,2-trifluoro-2-[(trifluorovinyl)oxy]-1-(trifluoromethyl)ethoxy]butyrate

2,2,3,3,4,4-Hexafluoro-4-[1-(trifluoromethyl)-1,2,2-trifluoro-2-[(trifluoroethenyl)oxy]ethoxy]butyric acid methyl ester

2,2,3,3,4,4-Hexafluoro-4-[1,2,2-trifluoro-2-[(trifluoroethenyl)oxy]-1-(trifluoromethyl)ethoxy]butanoic acid methyl ester