N-Ethyl-o-Toluenesulfonamide Pure from Canada
N-Ethyl-o-toluenesulfonamide is a pure isomer sulfonamide intermediate used in the synthesis of optical brighteners, dyes, and pharmaceutical intermediates. Specifically named in HTS 2935.90.13.00 as a distinct sulfonamide compound. Supplied in high purity (>99%) for precision chemical manufacturing.
Duty Rate — Canada → United States
110%
Rate breakdown
9903.04.60100%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
• HPLC chromatogram required to verify isomeric purity and absence of para-isomer contamination
• DOT shipping papers must specify UN number 3082 for Environmentally Hazardous Substance, Liquid, n.o.s