Tyrosine Ethyl Ester from United States
Tyrosine ethyl ester is the ethyl ester of tyrosine, classified under tariff item 2922.49.00 per Chapter Note 5(B) with the parent acid. It is a protected form used in peptide synthesis, maintaining the oxygen-function amino-compound nature.
Duty Rate — United States → Canada
0%
Import Tips
• Confirm the product is the ethyl ester of tyrosine, not a free acid
• Note that esters of Chapter 29 acids are classified with the parent acid per Chapter Note 5(B)
• Have the purity and identity documentation ready for CBSA