Calcitonin Salmon Recombinant from Mexico
Recombinant salmon calcitonin is a synthetic polypeptide chain-modified derivative used primarily as a hormone for osteoporosis and hypercalcemia treatment. It qualifies for HTS 2937.90.4500 as an 'other' amino-acid derivative hormone, explicitly including chain-modified polypeptides per the heading.
Duty Rate — Mexico → United States
0%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Provide biotech origin documentation and sequence analysis to verify as chain-modified polypeptide hormone
• Ensure cold chain compliance during import, documenting stabilizers as necessary for transport only
• Watch for immunological product exclusions under Chapter 29 note (e); pure hormones remain here