Dihydrostreptomycin Sesquisulfate from Mexico
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 — Mexico → United States
100%
Rate breakdown
9903.04.6096.5%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
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 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