Synonyms: Butanoicacid, heptafluoro-, ethyl ester (9CI); Butyric acid, heptafluoro-, ethyl ester(6CI,8CI); Ethyl 2,2,3,3,4,4,4-heptafluorobutyrate; Ethyl heptafluorobutanoate;Ethyl heptafluorobutyrate; Ethyl perfluorobutanoate; Ethyl perfluorobutyrate;NSC 3639