4,4′-(Hexafluoroisopropylidene) diphthalic anhydride (6FDA)

Basic Information of 6FDA

Product Name	4,4'-(Hexafluoroisopropylidene)diphthalic anhydride
Abbreviation	6FDA
CAS Number	1107-00-2
Product Type	Fluorinated aromatic dianhydride monomer
Molecular Formula	C19H6F6O6
Molecular Weight	444.24 g/mol
Appearance	White powder
Purity	≥ 99.9%; final batch data should be confirmed by latest COA
Metal Ion	1 ppm max. for any single metal ion, based on available specification reference
Main Application	Transparent, low-dielectric and high-performance polyimide synthesis
Package	1 kg/bottle, 20 kg/drum, or customized packaging
Documents	COA, SDS and TDS available upon request
Molecular Structure

Typical Specification of 6FDA

The above information is provided as a typical specification reference for 6FDA CAS 1107-00-2. Final batch data, purity, metal ion control and documentation should be confirmed by the latest COA before order confirmation.

Key Features in Polyimide Design

• Fluorinated dianhydride structure, relevant to transparent, low-dielectric and  high-performance polyimide systems.

• Bulky hexafluoroisopropylidene groups may help reduce charge-transfer interactions and  support optical clarity depending on the paired diamine and polymer structure.

• Low-polarizability fluorinated groups are often considered for    electronics and microelectronics polyimide applications.

• The aromatic dianhydride structure may support thermal stability and mechanical performance  in derived polyimide systems.

• 6FDA is commonly evaluated with fluorinated diamines such as  TFMB / TFDB CAS 341-58-2  for transparent and low-dielectric PI material design.

Pairing 6FDA with Diamine Monomers

In polyimide synthesis, 6FDA is commonly evaluated together with selected polyimide diamine monomers supply portfolio. Fluorinated diamines such as TFMB / TFDB CAS 341-58-2 are often considered with 6FDA when transparent, low-dielectric or low-moisture-uptake polyimide systems are required.

Ether-containing diamines such as BAPP may support processability and film-forming behavior, while rigid aromatic diamines may be considered when thermal stability and dimensional control are important. Final material performance depends on the complete monomer pair, purity level, formulation and processing conditions.

Application Context of 6FDA in Polyimide Systems

6FDA is commonly referenced in material development involving transparent, low-dielectric and high-performance polyimides. Its role is typically that of a structural dianhydride monomer rather than a finished application material, and final material performance depends on the paired diamine, formulation, processing and imidization conditions.

•  Optical and transparent polyimide systems  – monomer selection for reduced coloration and optical clarity in PI design.

•  Electronics and microelectronics polyimide applications  – low-dielectric, insulation-related and electronic material requirements.

• Gas separation membrane research – 6FDA-based polyimides are often discussed in membrane  material studies where free volume, permeability and selectivity are important design factors.

• Specialty fluorinated polyimides – used in advanced polymer systems where transparency,  dielectric behavior, chemical resistance and thermal performance need to be balanced.

Related Polyimide Monomer Supply Guides

For a broader technical overview of both diamine and dianhydride monomer families, please review Polyimide Monomers: Diamines and Dianhydrides.

Related Polyimide Monomers

• TFMB / TFDB CAS 341-58-2  – fluorinated diamine often considered with 6FDA in transparent and low-dielectric PI systems.

• BPDA CAS 2420-87-3  – rigid aromatic dianhydride for low-CTE and high-temperature polyimide films.

• ODPA CAS 1823-59-2  – ether-containing dianhydride for processable and flexible PI systems.

COA, SDS and Technical Documentation

Please share the required purity, metal ion control requirement, target specification, quantity, destination country or port, and preferred packaging method so we can review availability, documentation support and export packing options.