2,2,3,3-Tetrafluoro-3-methoxypropanoic acid, methyl ester 755-73-7 EINECS 212-048-1 Methyl 2,2,3,3-tetrafluoro-3-methoxypropanoate Methyl 2,2,3,3-tetrafluoro-3-methoxypropionate Methyl 3-methoxyperfluoropropanoate Methyl 3-methoxytetrafluoropropanoate Propanoic acid, 2,2,3,3-tetrafluoro-3-methoxy-, methyl ester