Purine Base (Adenine) from Mexico
Adenine is a purine nucleobase with a fused pyrimidine-imidazole ring system containing four nitrogen hetero-atoms. Falls under HTS 2933.99.82 as other aromatic nitrogen heterocycles before nucleic acid provisions. Used in biochemical research and vitamin synthesis.
Duty Rate — Mexico → United States
16.5%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Nucleic acid-free certification; biotech end-use declaration; HPLC purity reports