Hexamethylenediamine Citrate from Japan
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 — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 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