Imidazole from Germany
Imidazole is a five-membered heterocyclic ring containing two nitrogen atoms, fundamental to histidine and many pharmaceuticals. HTS 2934.99.90.01 includes it as other heterocyclic compounds.
Duty Rate — Germany → United States
18.5%
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
9903.05.3910%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
• Provide histidine equivalence data if used in nutritional supplements
• Use low-temperature shipping to prevent sublimation losses
• Verify no histidine contamination which changes biochemical classification