"Pentadecafluorooctanoic acid"@en . . "PFOA (Perfluoro Octanoic Acid) — Codice CAS: 335-67-1"@it . "PFOA (Perfluoro Octanoic Acid)"@it . . . "Pentadecafluorooctanoic acid — CAS Identifier: 335-67-1"@en . "CAS:335-67-1" . . .