Dihydrostreptomycin Sesquisulfate from Canada
Sesquisulfate salt of dihydrostreptomycin (1.5 sulfate per molecule), a less common but chemically defined derivative used in specialized antibiotic formulations. Classified in HTS 2941.20.10.00 per Chapter 29 salt provisions.
Duty Rate — Canada → United States
3.5%
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
• Provide stoichiometric analysis confirming sesquisulfate ratio to validate salt classification
• Ensure GMP manufacturing certification for pharma-grade imports
• Monitor for potency degradation; include stability data in documentation