Vinbarbital from Canada
Vinbarbital, a barbituric acid derivative with vinyl substitution, features nitrogen heterocyclic pyrimidine ring. HTS 2933.52.9000 applies as 'other' malonylurea per chemical definition.
Duty Rate — Canada → United States
110%
Rate breakdown
9903.04.60100%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
• Ensure batch records show synthesis from barbituric acid to validate heading