6FDA Monomer -- 4,4'-(Hexafluoroisopropylidene)bis(phthalic anhydride) from Japan
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 — 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
• 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