Burgess Reagent from Mexico
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 — Mexico → United States
13.7%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
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