Suberic acid bisimide from Canada
Suberic acid bisimide features two imide groups linked by an octamethylene chain, used in polymer and pharmaceutical synthesis. Dual imide functionality clearly places it under HTS 2925.19.91.00 'other' imides.
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
• High MW (268+); molecular weight verification prevents polymer misclassification
• Custom synthesis common; include manufacturer CoA and synthesis route
• Low toxicity profile; standard chemical import procedures apply