6-Methyl uracil from Mexico
Also known as 6-methylpyrimidine-2,4(1H,3H)-dione, this compound features a pyrimidine ring with methyl at position 6 and keto groups. Specifically named in HTS 2933.59.85.00 for pyrimidine compounds. Serves as biochemical reagent and pharmaceutical intermediate.
Duty Rate — Mexico → United States
110%
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
9903.05.5510%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
• Supply CAS number (65-71-4) and structural formula in import documentation for verification
• Check for anti-dusting agents; excessive additives may invoke Chapter 29 note (g) reclassification
• For lab quantities, ensure not packaged for retail sale to avoid heading 3212 exclusion