Synthetic Saxitoxin from China
Synthetic saxitoxin is a laboratory-reproduced version of the natural paralytic alkaloid toxin, explicitly covered under HTS 2939.80.0010 as alkaloids reproduced by synthesis. Its chemical structure matches natural saxitoxin, qualifying it as a separate chemically defined organic compound.
Duty Rate — China → United States
31.5%
Rate breakdown
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
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 synthesis method documentation to distinguish from natural extracts
• Include Material Safety Data Sheet (MSDS) detailing toxicity and handling requirements
• Declare exact quantity in micrograms due to extreme potency; avoid bulk shipments