2922.41.00.90/Epsilon-Acetyl-L-Lysine/Japan

Epsilon-Acetyl-L-Lysine from Japan

Epsilon-acetyl-L-lysine is a chemically modified lysine where the epsilon-amino group is acetylated, used in biochemical research and peptide synthesis. It remains classified under 2922.41.00.90 as a lysine derivative salt/ester with retained principal amino-acid characteristics and single oxygen function.

Duty Rate — Japan → United States

15%

Rate breakdown

9903.04.6211.3%Pharmaceuticals: patented pharma from JP/EU/KR/CH/LI — 15% 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)

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Import Tips

• Include NMR spectra confirming epsilon-position acetylation (not alpha)

• Typically small packages; ensure biotech end-use declaration for valuation

• Avoid generic 'lysine derivative' labeling; specify modification precisely