Gentamicin Sulfate Powder from China
Gentamicin sulfate is a natural aminoglycoside antibiotic complex produced by Micromonospora purpurea, effective against gram-negative bacteria in severe infections. Classified under HTS 2941.90.10.10 as a natural aminoglycoside, it qualifies as a chemically defined organic compound meeting Chapter 29 note (a) for separate compounds. Bulk powder form is typical for pharmaceutical manufacturing.
Duty Rate — China → United States
100%
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
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• Provide microbial origin documentation and HPLC chromatograms showing C1, C1a, C2, C2a components typical of natural gentamicin
• Comply with FDA bioequivalence standards if referencing ANDAs; declare exact sulfate content
• Watch for misdeclaration as veterinary grade, which may trigger different residue testing requirements