Perfluoropropionic Acid (PFPrA) from Mexico
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.
Duty Rate — Mexico → United States
100%
Rate breakdown
9903.04.6096.3%Pharmaceuticals Annex IV: patented pharma articles — 100% floor rate
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Highly corrosive; specify DOT proper shipping name 'Corrosive liquid, acidic, organic, n.o.s.',Provide vapor pressure data for proper ventilation requirements
• Confirm <0.1% isomer impurities to maintain pure compound classification