Alfentanil Hydrochloride from Japan
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 — Japan → United States
21%
Rate breakdown
9903.04.628.5%Patented pharmaceutical articles that are the product of Japan, of a European Union member country, of South Korea, of Switzerland, or of Liechtenstein as provided for in subdivisions (c) and (f) of U.S. note 40 to this subchapter
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, 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