Heptachlor Pure Chemical Standard from Canada
Heptachlor (ISO), a chlorinated hydrocarbon pesticide, is explicitly covered by HTS 2903.82.00.00 as a halogenated derivative of cyclenic hydrocarbons. Used as a reference standard for analytical labs and in manufacturing. Its chemical purity aligns with chapter note (a) for separate compounds.
Duty Rate — Canada → United States
15.5%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Provide Material Safety Data Sheets (MSDS) and proof of end-use for research; register under TSCA for non-pesticide import
• Pitfall: misdeclaring quantity leading to quota issues