Niacin Bulk Crystals 99.5% Pure from China
Crystalline nicotinic acid at 99.5% purity, packaged in 25kg fiber drums for industrial vitamin processing. Falls under HTS 2936.29.16.20 as synthetic niacin used primarily as vitamin B3 source in food fortification and supplements. Meets chapter note requirements for separate chemically defined organic compounds without functional additives.
Duty Rate — China → 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
• Use ISBT numbering system for bulk vitamin packaging and provide cleaning validation for multi-product drums
• Include melting point (234-237°C) and assay data to distinguish from lower-purity industrial grades
• File FDA supplement filings pre-arrival; misdeclaration as 'food additive' instead of 'vitamin' causes delays