Suberic acid bisimide from Japan
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 — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
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