</>Build with Tariff Intelligence|Programmatic access to tariff calculations and HS code classification.Explore Developer Resources →

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

10%

Rate breakdown

9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada

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