Unmixed Tumor Necrosis Factor Alpha (TNF-α) from Canada
TNF-α is a cytokine involved in systemic inflammation and immune regulation, supplied in bulk for research and therapeutic development. HTS 3002.13.00 applies to this unmixed immunological product per chapter definitions for TNFs.
Duty Rate — Canada → United States
0%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Submit lot-specific endotoxin and potency testing data; use insulated packaging for temperature control; confirm no retail intent via commercial invoice