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
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 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