L-Proline from Germany
L-Proline is a non-essential amino acid with pyrrolidine ring, oxygen-function amino-acid under HTS 2922.49.4950. Key in collagen synthesis supplements and pharmaceutical intermediates.
Duty Rate — Germany → United States
20.8%
Rate breakdown
9903.04.6210.8%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
9903.05.3910%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
• Cyclic structure confirmation prevents acyclic classification
• Heavy metals testing critical for collagen applications
• Fermentation vs synthetic origin declaration