2-Mercaptopropionic Acid from Japan
2-Mercaptopropionic acid is an alpha-thiol carboxylic acid used in pharmaceutical intermediates and metal chelation applications. Classified under HTS 2930.90.49 as an other organo-sulfur acid with the characteristic S-C bond structure defined in heading 2930.
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 NMR or GC-MS spectra verifying molecular structure to distinguish from sulfonated derivatives excluded from heading 2930
• Declare pharmaceutical end-use if applicable; requires FDA registration and may need prior notice via ACE system