Thymosin Alpha-1 Powder from Canada
Synthetic thymosin alpha-1, a polypeptide hormone used primarily for immune modulation. Falls under HTS 2937.90.90.00 as a hormone derivative used primarily as a hormone. Research-grade bulk powder.
Duty Rate — Canada → United States
0%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Include Institutional Review Board (IRB) approval if for clinical research
• Document synthetic origin to distinguish from biological extracts
• Lyophilized form requires humidity-controlled packaging and documentation