Thymidine Monophosphate (dTMP) from Mexico
dTMP is a DNA precursor nucleotide used in replication studies and antiviral synthesis. Falls under HTS 2934.99.39.00 as an aromatic nucleic acid specified in additional U.S. note 3.
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
• Provide deoxyribose confirmation via enzymatic digestion analysis
• Use nuclease-free water reconstitution instructions
• Declare polymerase chain reaction (PCR) grade if applicable