Niacin Bulk Crystals 99.5% Pure from Mexico
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 — Mexico → 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
• 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