Pyridine-3-Carboxylic Acid (Nicotinic Acid) from Canada
Nicotinic acid, also known as vitamin B3, is a pyridine derivative with a carboxylic acid group at position 3, used as a nutritional supplement and in pharmaceuticals. Classified under HTS 2933.39.92.00 as an 'other' compound containing an unfused pyridine ring per Chapter 29 specifications. Excludes vitamin preparations put up for retail sale.
Duty Rate — Canada → 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
• Provide analytical data confirming pyridine structure and purity >98%; label as 'not for retail sale' to avoid Chapter 30
• Watch for EU REACH compliance on pyridine compounds