6FDA Monomer -- 4,4'-(Hexafluoroisopropylidene)bis(phthalic anhydride) from Canada
Known as 6FDA, this fluorinated dianhydride is a chemically defined aromatic polycarboxylic anhydride under HTS 2917.39.12.00, used primarily in synthesizing polyimides with exceptional thermal and chemical resistance. Its specific structure with fluorine substitution distinguishes it from other aromatic anhydrides.
Duty Rate — Canada → United States
10%
Rate breakdown
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
• Include Safety Data Sheet (SDS) detailing reactivity with water/amines; use DOT-approved packaging to prevent moisture exposure; confirm REACH compliance if transshipping from EU