Sulfanilamide from Canada
Sulfanilamide is an aromatic amide with sulfonamide functionality, the basis for sulfa drugs and antimicrobial agent. Classified HTS 2924.29.77.90 as other aromatic cyclic amide (sulfonated derivatives included per note 3). Used in pharmaceutical synthesis.
Duty Rate — Canada → United States
16.5%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Sulfonated amides stay in 2924 per note 3; provide NMR confirming no halogenation that might shift heading