2,3,3,3-Tetrafluoro-2-(trifluoromethyl)propionic acid 335-10-4 4-02-00-00858 (Beilstein Handbook Reference) BRN 1790303 Heptafluoroisobutyric acid Kyselina heptafluorisomaselna [Czech] Perfluoroisobutyric acid Propanoic acid, 2,3,3,3-tetrafluoro-2-(trifluoromethyl)- Propionic acid, 2,3,3,3-tetrafluoro-2-(trifluoromethyl)-