4,7-Dichloroquinoline 98% Technical Grade from Canada
Technical grade 4,7-dichloroquinoline with 98% purity is used as a synthetic intermediate for agrochemicals and pharmaceuticals, falling under HTS 2933.49.08.00 due to its specific quinoline ring substitution. The chapter notes confirm classification of pure chemically defined heterocyclic compounds.
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
• Label containers with UN number (if applicable) and GHS hazard pictograms for proper hazmat declaration
• Maintain batch certificates showing impurity profiles to prevent reclassification as a mixture
• Register under TSCA if first import to US; failure causes customs holds