2903.89.31.00/Lindane Gamma Isomer/Canada

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

9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter

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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