Ascorbic Acid (Vitamin C) Lactone from Mexico
Ascorbic acid features an enediol-lactone structure with oxygen heteroatoms only, classified under HTS 2932.20.50. Used as antioxidant in food, pharma, and cosmetics.
Duty Rate — Mexico → United States
13.7%
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
• Food grade requires USP/NF certificate; pharma grade needs DMF filing
• Particle size specification critical for dissolution rate compliance