Pentafluorophenol from Mexico
Pentafluorophenol has all five ring hydrogens replaced by fluorine atoms, creating a highly electrophilic phenol derivative. Falls under HTS 2908.19.60.00 as the ultimate 'only halogen' substituted phenol. Used in organofluorine coupling reactions and peptide synthesis.
Duty Rate — Mexico → United States
110%
Rate breakdown
9903.04.6094.5%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
• Fluorinated compounds require specialized hazmat declarations due to HF generation potential
• High purity grades (>98%) common; verify assay certificates match technical specifications
• Research chemical imports may use 9810.00.6000 for duty-free scientific instrument exemption