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
100%
Rate breakdown
9903.04.6093.5%Pharmaceuticals Annex IV: patented pharma articles — 100% floor rate
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
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