Enfuvirtide (Synthetic Peptide Hormone Analogue) from Mexico
Enfuvirtide is a synthetic polypeptide used as HIV entry inhibitor, functioning as hormone structural analogue. Though antiviral, its polypeptide hormone-like structure places it in HTS 2937.19.00.00 when used primarily as hormone analogue.
Duty Rate — Mexico → United States
100%
Rate breakdown
9903.04.60100%Pharmaceuticals: patented pharma articles — 100% floor rate
9903.05.860%Universal product exemption (U.S. note 52(b))
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
• Provide dual-use (hormone/antiviral) classification ruling; validate 36-amino acid sequence; monitor for antiviral reclassification