Nicotinamide Adenine Dinucleotide (NAD+) Hydrate from Mexico
NAD+ hydrate is critical for redox reactions and sirtuin enzyme activity studies. Classified under HTS 2934.99.39.00 as a nucleic acid derivative per additional U.S. note 3.
Duty Rate — Mexico → United States
110%
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
9903.05.5510%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
• Test for NADH contamination (<1%) and report cycling assay activity
• Use lyophilized powder form for optimal long-term stability
• Include expiration date and reconstitution instructions