Pharmaceutical Grade Niacin USP Powder from Mexico
High-purity niacin (vitamin B3) powder meeting USP standards for pharmaceutical applications, used in prescription medications for cholesterol management and pellagra treatment. Classified under HTS 2936.29.1610 as pharmaceutical grade niacin, a chemically defined vitamin derivative unmixed and suitable for drug formulation.
Duty Rate — Mexico → United States
100%
Rate breakdown
9903.04.60100%Pharmaceuticals Annex IV: patented pharma articles — 100% floor rate
9903.05.860%Universal product exemption (U.S. note 52(b))
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
• Require Certificate of Analysis (CoA) and USP compliance documentation; ensure GMP manufacturing certification; verify 'pharmaceutical grade' purity (>99%) to avoid reclassification as technical grade