High-purity liquid crystal intermediates

9,9-Bis(3,4-dicarboxyphenyl)fluorene Dianhydride  135876-30-1

Synonyms:BPAF

Appearance:white powder 

Purity:99.5%min 

Physical and Chemical Properties

• Molecular Formula: C₂₉H₁₄O₆

• Molecular Weight: 458.43 g/mol

• Melting Point: 269 °C

• Solubility: Soluble in polar aprotic solvents (NMP, DMAc), insoluble in water and alcohols

• Storage: Sealed and stored in a dry and cool place, protect from moisture

Applications

• Used as a key monomer for polyimide (PI) resins with fluorene structure.

• Applied in high-performance materials for flexible printed circuits (FPC), flexible copper-clad laminates (FCCL), optical films, OLED substrates and advanced electronic packaging materials.

• HS Code: 2932990090