Thymus Gland Extract from Mexico
Extract from calf thymus glands used in immunotherapy for immune modulation. Qualifies under HTS 3001.20.00.00 as organ extract for therapeutic uses.
Duty Rate — Mexico → 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
• Immunological product notes apply; ensure not classified under 3002 if peptide-based
• Refrigerated chain required; include stability data in filings
• Differentiate from food supplements excluded by Chapter 30 note (a)