5-Methyluridine Monophosphate from Mexico
This modified nucleotide is used in epigenetic research and antiviral drug development. Classified in HTS 2934.99.39.00 per additional U.S. note 3 for listed aromatic heterocyclic nucleic acids.
Duty Rate — Mexico → United States
110%
Rate breakdown
9903.04.6093.5%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
9903.05.5510%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
• Include NMR spectra and mass spectrometry data for structure verification
• Check for DEA controlled substance status if used in drug synthesis
• Use insulated packaging with gel packs for temperature-sensitive shipments