Cinnoline from Canada
Cinnoline is a bicyclic aromatic heterocycle with adjacent nitrogen atoms in the six-membered ring. Falls under HTS 2934.99.44.00 as other aromatic heterocyclic compound. Used in pharmaceutical research for anti-inflammatory agents.
Duty Rate — Canada → United States
110%
Rate breakdown
9903.04.6093.5%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
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
• Rare compound - provide peer-reviewed literature references for CBP
• Unstable to light - specify amber packaging requirements
• Molecular weight 130.14 g/mol confirms structure