2-Aminothiazole-4-Acetic Acid from Canada
This thiazole derivative with amino and acetic acid functions on aromatic ring structure qualifies for HTS 2934.10.10.00. Key intermediate for cephalosporin antibiotic synthesis.
Duty Rate — Canada → United States
100%
Rate breakdown
9903.04.6093.5%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
• Provide particle size distribution (D90<10μm) for downstream cefotaxime synthesis
• Light-sensitive; use amber glass or opaque HDPE containers with argon headspace
• Include genotoxic impurity profile per ICH M7 guidelines for API intermediates