3-Trifluoromethyl-1H-pyrazole from Mexico
3-Trifluoromethyl-1H-pyrazole features trifluoromethyl substitution on unfused pyrazole ring, HTS 2933.19.90.00 classification. Key intermediate in fluorinated pharmaceutical and crop protection agent synthesis.
Duty Rate — Mexico → United States
110%
Rate breakdown
9903.04.6093.5%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 enhanced ventilation specifications in SDS
• High volatility - specify vapor pressure and recommend pressure-relief packaging
• Verify CF3 group integrity via 19F-NMR for customs chemical verification