Buta-1,3-diene (1,3-Butadiene) from Canada
Buta-1,3-diene is a colorless, flammable gas with the molecular formula C4H6, classified as an acyclic unsaturated hydrocarbon under HTS 2901.24.10.00 due to its conjugated double bonds and four-carbon chain structure. It serves as the primary monomer for synthetic rubber production.
Duty Rate — Canada → United States
10%
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
Import Tips
• Verify purity levels (typically >99%) via Certificate of Analysis to confirm classification under pure butadiene heading
• Ensure proper DOT/UN 1010 hazardous material documentation and cryogenic storage compliance for gaseous imports
• Avoid misclassification as mixtures; even trace impurities must be documented if exceeding chapter note thresholds