Phosphatidyl Ascorbate from Mexico
Phospholipid conjugate of ascorbic acid featuring intact lactone ring. Classified HTS 2932.20.3000 as aromatic lactone meeting U.S. note 3 criteria. Liposomal delivery applications.
Duty Rate — Mexico → United States
110%
Rate breakdown
9903.04.6093.5%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
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 phospholipid linkage analysis confirming lactone primacy,Molecular weight and purity documentation critical,Avoid liposomal suspension forms triggering Chapter 30 classification