Pharma-Grade GDL for Effervescent Tablets from Mexico
Pharmaceutical-grade glucono-δ-lactone for use in effervescent formulations and controlled-release medications, under HTS 2932.20.50.20. This pure heterocyclic compound provides gradual acidification without taste issues of citric acid. Complies with Chapter 29 as a separate chemically defined organic compound.
Duty Rate — Mexico → United States
110%
Rate breakdown
9903.04.6096.3%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
• Include DMF (Drug Master File) reference if destined for pharma; FDA requires advance notice via Prior Notice system
• Microbial limits testing (<1000 CFU/g) essential; common cause of pharma import refusals
• Separate from food shipments to avoid cross-contamination concerns during customs inspection