HFBPA Anhydride -- 99% Technical Grade from China
HFBPA Anhydride, or 4,4'-(Hexafluoroisopropylidene)bis(phthalic anhydride), is a technical-grade aromatic dianhydride used in the production of fluoropolymers. It is a separate chemically defined organic compound, falling under tariff item 2917.39.00 as an aromatic polycarboxylic acid derivative.
Duty Rate — China → Canada
0%
Import Tips
• Ensure the product is clearly identified as 4,4'-(Hexafluoroisopropylidene)bis(phthalic anhydride) with its CAS number on commercial invoices
• Verify that the technical grade meets purity standards for chemical classification under Chapter 29
• Consult the CBSA's Advance Rulings service for binding classification decisions