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
3.7%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Distinguish from true heterocyclics (2933)
• NMR confirms acyclic chain dominance