Nonafluoropentene from Mexico
Nonafluoropentene provides high fluorine content for plasma polymerization applications. Meets HTS 2903.59.90.00 as 'other' unsaturated fluorinated acyclic hydrocarbons. Chapter 29 note (g) permits trace stabilizers without reclassification.
Duty Rate — Mexico → 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
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Verify terpene inhibitor levels (typically 100-500 ppm) per SDS
• Use nickel-plated brass fittings compatible with fluorinated gases
• Include FTIR spectra confirming >99.9% purity and isomer ratio