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L-Lysine Ethyl Ester Dihydrochloride from China

L-Lysine ethyl ester dihydrochloride is the diethyl ester salt of lysine, an intermediate in organic synthesis and pharmaceutical manufacturing. Per Chapter 29 note on esters, it classifies with the parent lysine under 2922.41.00.90 as 'other' esters/salts.

Duty Rate — China → United States

112.5%

Rate breakdown

9903.04.6096.3%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
9903.05.3112.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of China, as provided for in U.S. note 52 to this subchapter

Import Tips

• Provide ester hydrolysis stability data; declare as 'not for direct food use'

• DEA watch list if used in controlled substance synthesis pathways