4,4'-(Hexafluoroisopropylidene)bis(phthalic anhydride) 98% purity from Japan
This is a high-purity aromatic polycarboxylic anhydride featuring a hexafluoroisopropylidene bridge between two phthalic anhydride units, classified under HTS 2917.39.12.00 as a specific derivative of aromatic polycarboxylic acids. It serves as a key monomer in producing high-performance fluorinated polyimides for advanced materials.
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
• Verify chemical purity and provide Certificate of Analysis (CoA) from manufacturer; ensure packaging complies with UN hazardous material regulations for anhydrides; declare exact CAS number 1107-00-0 to avoid reclassification