Tryptophan Sodium Salt from Japan
Sodium salt of tryptophan, an aromatic amino-acid salt with single oxygen function, covered by HTS 2922.49.30.00 and chapter note 3(C)(1). Used in pharmaceutical formulations.
Duty Rate — Japan → United States
21%
Rate breakdown
9903.04.628.5%Patented pharmaceutical articles that are the product of Japan, of a European Union member country, of South Korea, of Switzerland, or of Liechtenstein as provided for in subdivisions (c) and (f) of U.S. note 40 to this subchapter
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
• Classify with organic component per note 3(C); provide counterion details
• Pitfall: bulk dilution exceeding note 1(d)