Alfentanil Hydrochloride from Mexico
Alfentanil hydrochloride is a short-acting synthetic opioid fentanyl derivative, chemically defined and classified under HTS 2934.92.00.00. It features a modified piperidine structure, fitting chapter 29's heterocyclic compounds scope.
Duty Rate — Mexico → 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
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Provide INN certificates and stability studies; use temperature-controlled shipping to prevent degradation
• Watch for misclassification as non-derivative opioids leading to wrong duties