3-Mercaptopropionic Acid from Germany
3-Mercaptopropionic acid serves as a cross-linking agent in polymer synthesis and corrosion inhibitor. It qualifies for HTS 2930.90.49 as an organo-sulfur carboxylic acid, meeting the direct sulfur-carbon linkage requirement of heading 2930.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.97, articles the product of a member state of the European Union, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 10 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Include TSCA certification for US environmental compliance; failure common cause of entry refusal
• Label shipments with GHS hazard pictograms (corrosive, acute toxicity) per DOT/IATA regulations
• Document bulk vs packaged form—retail packs may shift to 3824.99