4-Formylphenylacetic Acid Methyl Ester USP Grade from Japan
High-purity USP grade version of 1-formylphenylacetic acid methyl ester, meeting pharmaceutical standards for use in drug intermediate synthesis. Classified under HTS 2918.30.10.00 due to its exact chemical identity as the specified aromatic compound with aldehyde and ester functions. The USP designation confirms it's a separate chemically defined organic compound per Chapter 29 notes.
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
• Include USP certificate of analysis and FDA Drug Master File reference if destined for pharma use; declare exact purity (>99%) to prevent reclassification
• Verify REACH/TSCA compliance and obtain EPA pre-manufacture notice if required for new chemical uses