Ethyl heptafluorobutanoate, Heptafluorobutyric Acid Ethyl Ester, Perfluorobutyric Acid Ethyl Ester, Ethyl Perfluorobutyrate, ethyl perfluoroisobutyrate, BUTYRIC ACID,HEPTAFLUORO-,ETHYL ESTER, Ethyl heptafluorobutyrate, Butanoic acid,heptafluoro-,ethyl ester, Ethyl perfluorobutanoate, 2,2,3,3,4,4,4-heptafluoro-butyric acid ethyl ester, Butanoic acid, heptafluoro-, ethyl ester, ethyl 2,2,3,3,4,4,4-heptafluorobutyrate