. . . . . "PFPeA (Perfluoro Pentanoic Acid) — Codice CAS: 2706-90-3"@it . "Perfluorovaleric acid — CAS Identifier: 2706-90-3"@en . "CAS:2706-90-3" . "Perfluorovaleric acid"@en . "PFPeA (Perfluoro Pentanoic Acid)"@it .