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
100%
Rate breakdown
9903.04.60100%Pharmaceuticals Annex IV: patented pharma articles — 100% floor rate
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
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