Lindane Gamma Isomer from Canada
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 — Canada → United States
15.5%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
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