Flavine Adenine Dinucleotide (FAD) Sodium Salt from China
FAD sodium salt is a redox cofactor in enzymatic reactions, containing both flavin and adenine moieties. Falls under HTS 2934.99.39.00 as specified aromatic heterocyclic compound in U.S. note 3.
Duty Rate — China → United States
112.5%
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
9903.05.3112.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of China, as provided for in U.S. note 52 to this subchapter
Import Tips
• Include absorbance ratio (A450/A260) verification for purity assessment
• Ship light-protected in amber containers to prevent photodegradation
• Provide CoA with lot-specific activity measurements