Pyridylglyoxylic Acid from Canada
Pyridylglyoxylic acid has pyridine ring with keto-carboxylic side chain, but acyclic chain function dominates for HTS 2918.30.90.00.
Duty Rate — Canada → United States
110%
Rate breakdown
9903.04.6096.3%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
• Distinguish from true heterocyclics (2933)
• NMR confirms acyclic chain dominance