Tyrosine Ethyl Ester from Japan
Tyrosine ethyl ester follows parent tyrosine classification per note 3(B) in HTS 2922.49.37.00. Ethyl esters of Chapter 29 acids stay with acid heading. Protected form for peptide synthesis.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• Confirm ethyl ester via GC-MS; note 3(B) specific provision
• Hydrolyzes easily; stable packaging required