Hexamethylenediamine Citrate from Mexico
Citric acid salt used in pharmaceutical buffering and nutritional supplements. HTS 2921.22.5000 as polyamine salt derivative. Soluble in water, pH 6-8.
Duty Rate — Mexico → United States
16.5%
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
• Provide citric acid content and buffer capacity documentation
• GMP certification required if destined for nutritional use
• Label as food-grade if applicable to avoid chemical classification issues