2,2-Bis(3,4-dicarboxyphenyl)hexafluoropropane Dianhydride from Japan
This systematic name refers to 4,4'-(Hexafluoroisopropylidene)bis(phthalic anhydride), a specific aromatic anhydride in HTS 2917.39.12.00, valued for producing colorless polyimides in optical applications. Its chemical purity ensures consistent polymerization properties.
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
• Provide NMR spectrum in documentation for purity verification; use nitrogen-purged containers; comply with EPA pre-manufacture notice if resynthesizing