Ethyl 2-Mercaptoacetate from Japan
Ethyl 2-mercaptoacetate (HS-CH2COOCH2CH3) is an organo-sulfur ester with thiol group directly attached to carbon. Falls under HTS 2930.90.92 as other organo-sulfur compounds per chapter hierarchy. Used as intermediate in pharmaceutical synthesis.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Submit binding ruling request if ester function raises classification questions between sulfur and oxygen functions
• Verify REACH/TSCA compliance; provide manufacturing process details to confirm synthetic origin
• Package with stabilizers only as permitted by Chapter 29 note (f) to avoid reclassification