N-Acetylsulfanilyl Chloride from Canada
N-Acetylsulfanilyl chloride is an aromatic amide derivative used in sulfonamide antibiotic synthesis, featuring a sulfonyl chloride group. It qualifies under HTS 2924.29.10.00 as a specifically named cyclic amide product of chapter 29. Primarily imported for pharmaceutical intermediate production.
Duty Rate — Canada → United States
110%
Rate breakdown
9903.04.6093.5%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
• Provide REACH/ TSCA registration for sulfonyl chloride hazards; ship under temperature control to prevent hydrolysis; declare exact CAS 1216-37-3 to avoid reclassification