L-Triiodothyronine (Liothyronine) from China
Liothyronine, also known as L-triiodothyronine or T3, is a synthetic amino acid derivative of the thyroid hormone used primarily for treating hypothyroidism and myxedema coma. This chemically defined hormone is reproduced by synthesis and has potent metabolic effects. It is classified under 2937.90.00 as an amino-acid derivative hormone used primarily for hormonal effects.
Duty Rate — China → Canada
0%
Import Tips
• Confirm the product is the free base or a specific salt form as documented
• Ensure the product is not in tablet or injectable form, which would fall in Chapter 30
• Maintain records showing the primary hormonal use for classification