Cidofovir from China
Cidofovir is a cytosine nucleotide analog (phosphonate nucleotide) used intravenously for cytomegalovirus retinitis in AIDS patients. As a chemically defined nucleic acid derivative drug with heterocyclic pyrimidine base, it falls under HTS 2934.99.4700. Contains phosphorus directly linked meeting Chapter 29 organo-inorganic criteria.
Duty Rate — China → United States
100%
Rate breakdown
9903.04.6096.3%Pharmaceuticals: 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
• Cold chain (-20°C) shipping required; FDA orphan drug designation documentation; phosphonate stability data essential for customs