Perfluorobutanoic Acid (PFBA) from Canada
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.
Duty Rate — Canada → United States
110%
Rate breakdown
9903.04.6096.3%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Confirm PFAS regulatory status in destination country; emerging restrictions on short-chain alternatives
• Provide NMR or GC-MS analysis confirming perhalogenation and purity >98%
• Label containers with UN hazard class 1760 for corrosive liquids during transport