Articaine Hydrochloride from Mexico
Articaine hydrochloride, thiophene-based amino-amide anesthetic with sulfonate oxygen function. HTS 2922.50.2500 'other drugs' for aromatic oxygen-function amino-compounds. Rapid metabolism makes it unique; structure confirmed as qualifying organic compound.
Duty Rate — Mexico → United States
100%
Rate breakdown
9903.04.6093.5%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
• Include thiophene stability data; sensitive to light exposure
• Sulfite-free certification required for certain markets
• Declare CAS 23964-57-0 precisely to match FDA records