2-(2-Aminophenyl)-2-oxoacetic Acid from Canada
This amino-keto acid contains both ketone and carboxylic acid functions but classifies under HTS 2922.39.5000 per Chapter Note 4(A) prioritizing later numerical heading for esters/acids. Used in pharmaceutical 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
• Multi-function compounds require detailed structural analysis; cite Chapter 29 Note 4(A)
• Carboxylic acid handling precautions mandatory