4-Phenylbutyric Acid Anhydride from Germany
Symmetric anhydride of 4-phenylbutyric acid, classified with parent aromatic monocarboxylic acid under HTS 2915.60.10.00. Acylation agent in organic synthesis.
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
• Confirm monomeric anhydride vs polymeric per exclusion notes; hazardous material declarations required; purity testing prevents polymer misclassification