N-Bromosuccinimide (NBS) from Canada
N-Bromosuccinimide is a brominated derivative of succinimide used as a brominating and oxidizing agent in organic synthesis. It qualifies under HTS 2925.19.91.00 as an imide derivative (not halogenated in the sense excluding it from heading per chapter notes). Essential for allylic bromination in pharmaceutical production.
Duty Rate — Canada → United States
13.7%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Classify as UN 3261, Corrosive Solid, pH 3-4; test samples to confirm proper DOT shipping name
• Avoid bulk packaging >25kg; retail laboratory packs (<1kg) reduce scrutiny but verify end-use declaration