L-Phenylalanine Ethyl Ester Hydrochloride from Canada
This ester salt of phenylalanine is an aromatic derivative with amino-acid oxygen function, classified in HTS 2922.49.30.00 as per additional U.S. note 3 and chapter note 3(A). Used in peptide synthesis.
Duty Rate — Canada → United States
16.5%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Specify ester as classified with parent acid per note 3(A/B); provide salt analysis
• Pitfall: declaring as separate inorganic salt