PharmaGrade Niacinamide 99% Crystals from Mexico
High-purity crystalline niacinamide (99%) for pharmaceutical compounding and vitamin supplement manufacturing. Falls under HTS 2936.29.16.30 as unmixed niacinamide derivative used primarily as vitamin B3. Synthetic reproduction of natural provitamin nicotinamide.
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
• Include GC-MS certificate confirming niacinamide identity (not niacin); declare exact purity percentage; watch for FDA prior notice requirements for vitamin imports over 100kg