Phenylalanine Methyl Ester Hydrochloride from Canada
Phenylalanine methyl ester hydrochloride is the ester salt of phenylalanine, classified in HTS 2922.49.37.00 per note 3(A) with the parent amino-acid. The ester maintains the oxygen-function amino-compound nature. Used as protected amino acid in solid-phase peptide synthesis.
Duty Rate — Canada → United States
110%
Rate breakdown
9903.04.6093.5%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Specify esterification confirmed by ester carbonyl IR peak; salts classified with parent per note 3(C)(1)
• Handle as corrosive solid (UN 3261); proper Hazard Class 8 labeling required