Niacin USP Powder from Canada
Pharmaceutical-grade niacin (nicotinic acid) powder meeting USP standards, used primarily as a vitamin B3 supplement for nutritional and therapeutic purposes. This chemically defined organic compound falls under HTS 2936.29.16.20 as 'other' niacin, unmixed and not in dosage form. It is commonly imported for use in dietary supplements and fortification of foods.
Duty Rate — Canada → United States
100%
Rate breakdown
9903.04.60100%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
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• Provide Certificate of Analysis (CoA) confirming ≥99% purity and USP compliance to verify classification as unmixed niacin
• Include documentation proving use primarily as a vitamin, not as a pharmaceutical intermediate, to avoid reclassification
• Ensure proper labeling with CAS number 59-67-6 and batch-specific stability data to prevent FDA holds at entry