Corey-Kim Reagent Intermediate (N-Chlorosuccinimide) from Canada
N-Chlorosuccinimide (NCS) is a chlorinating and oxidizing agent used in the Corey-Kim reaction, classified under HTS 2942.00.50.00. This N-haloimide features a succinimide ring with active chlorine.
Duty Rate — Canada → United States
110%
Rate breakdown
9903.04.6096.3%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Available chlorine content (≥98%) certification required on CoA
• Light-sensitive; amber packaging with <1% decomposition after 12 months data
• Distinguish from swimming pool chemicals through purity and end-use declaration