Burgess Reagent from Germany
Burgess reagent (methyl N-(triethylammoniumsulfonyl)carbamate) is used for alkene-forming eliminations, classified under HTS 2942.00.50.00. This inner salt features sulfonamide and carbamate functionalities.
Duty Rate — Germany → United States
21.3%
Rate breakdown
9903.04.6211.3%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
• Hygroscopic zwitterion; ship in sealed ampoules with humidity indicators
• Decomposition >180°C; include E2 elimination mechanism literature references
• Avoid confusion with explosive sulfonium salts through NMR characterization