Cathine Sulfate from Mexico
Cathine sulfate is a pharmaceutically pure salt form of cathine (norpseudoephedrine), an ephedra-derived sympathomimetic alkaloid used in drug synthesis. Classified under HTS 2939.43.00.00 as it qualifies as a cathine salt per chapter notes for separate chemically defined organic compounds. Supplied as white crystalline powder for lab or manufacturing use.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Submit FDA Drug Master File references and ensure batch testing certificates confirm salt identity via HPLC
• Declare exact CAS number (specific to cathine sulfate) on commercial invoice to prevent reclassification
• Avoid bulk packaging over 25kg without stabilizers, as chapter notes limit additions to those for safety/transport