CAS: 2706-90-3 Molecular Formula: C5 H F9 O2 Molecular Weight (g/mol): 264.05 Synonym: Pentanoic acid, nonafluoro- (9CI),Valeric acid, nonafluoro- (6CI,8CI),2,2,3,3,4,4,5,5,5-Nonafluoropentanoic acid,NSC 18404,Nonafluoropentanoic acid,Nonafluorovaleric acid,PFPeA,Perfluoropentanoic acid,Perfluorovaleric acid IUPAC Name: 2,2,3,3,4,4,5,5,5-nonafluoropentanoic acid SMILES: OC(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F