Perfluoropentanoic Acid (PFPeA)
PFPeA (C4F9COOH) represents medium-chain perfluorinated carboxylic acids, fully halogenated acyclic derivatives. Falls under 2903.78.00.00 per chapter notes for halogenated hydrocarbons with multiple halogens. Intermediate in fluoropolymer production.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If containing only fluorine as halogen (mono-halogen type)
Perfluoro compounds with single halogen type might classify differently from mixed-halogen derivatives.
If containing sulfur directly linked to carbon
Perfluorosulfonic acids with S-C bonds classify under organo-sulfur compounds.
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Import Tips & Compliance
• Include chain length specification in commercial invoice to distinguish from other PFCAs
• Comply with Stockholm Convention reporting if applicable to persistent organic pollutants
• Use fluoropolymer-compatible packaging to prevent container degradation
Related Products under HTS 2903.78.00.00
Perfluorooctanoic Acid (PFOA)
PFOA is a fully fluorinated carboxylic acid, a perhalogenated derivative of an acyclic hydrocarbon with all hydrogens replaced by fluorine atoms. It falls under HTS 2903.78.00.00 as an acyclic perhalogenated compound containing two or more different halogens (fluorine and implied structure). Commonly used in industrial applications but now heavily regulated due to environmental concerns.
Perfluorobutanoic Acid (PFBA)
PFBA is a short-chain perfluorocarboxylic acid with the formula C3F7COOH, fully fluorinated acyclic hydrocarbon derivative. Classified in 2903.78.00.00 as a perhalogenated compound meeting chapter 29 criteria for chemically defined organic compounds. Used in surfactant applications and chemical synthesis.
Perfluorohexanoic Acid (PFHxA)
PFHxA is a six-carbon perfluorocarboxylic acid used in fluorochemical manufacturing. As a perhalogenated acyclic hydrocarbon derivative containing only fluorine, it precisely matches 2903.78.00.00 criteria. Subject to increasing environmental scrutiny.
Perfluoropropionic Acid (PFPrA)
Shortest commercial perfluorocarboxylic acid (C2F5COOH), fully fluorinated with no hydrogen on carbon chain. 2903.78.00.00 classification reflects perhalogenated acyclic hydrocarbon derivative status. Used in specialty fluorochemical synthesis.
Perfluorobutyric Acid Methyl Ester
Methyl ester of perfluorobutanoic acid, maintaining full perhalogenation on acyclic chain. Classified 2903.78.00.00 as ester remains with parent perhalogenated hydrocarbon per chapter classification rules. Used as fluorinated solvent intermediate.
Perfluoro-n-heptanoic Acid Ammonium Salt
Ammonium salt of C6F13COOH, fully perhalogenated carboxylic acid derivative. 2903.78.00.00 applies per chapter note 3(C)(1) classifying inorganic salts with parent organic compound. Common surfactant form in commercial applications.