6FDA Monomer -- 4,4'-(Hexafluoroisopropylidene)bis(phthalic anhydride) from China
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 — China → United States
35%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
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