Lindane Gamma Isomer from China
Lindane is the pure gamma isomer of hexachlorocyclohexane (HCH), a chlorinated cyclanic derivative. Classifies under HTS 2903.89.31.00 despite six chlorines, as it's chlorinated-only substitution. Used in pharmaceutical scabicides.
Duty Rate — China → United States
18%
Rate breakdown
9903.05.3112.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of China, as provided for in U.S. note 52 to this subchapter
Import Tips
• Specify gamma isomer (>99%) to distinguish from technical HCH mixtures
• Include FDA drug master file for pharmaceutical grade specifications
• Comply with veterinary drug residue limits for animal treatment imports