... acid, 2,2,3,3,3-pentafluoro-, methyl ester,378-75-6,C4H3F5O2 Methyl perfluoropoppionat,Propanoic acid, 2,2,3,3,3 ... -pentafluoro-, methyl esterCAS NO.:378-75-6C4H3F5O2Molecular formula: C4H3F5O2Molecular weight: 178. ... .45Index of refraction: 1.333Appearance: Clear liquid with a typical ester odorPurity% ≥ 99.0Water% ≤ 0.5Main applications: Pharmaceutical intermediates Packing: ...