3,3',4,4'-Biphenyltetracarboxylic dianhydride NEW

3,3',4,4'-Biphenyltetracarboxylic dianhydride  2420-87-3

Synonyms:BPDA

Appearance:white powder 

Purity:99.9%min 

Physical and Chemical Properties

• Molecular formula: C₁₆H₆O₆

• Molecular weight: 294.22 g/mol

• Melting point: 298 – 300 °C

• Solubility: Soluble in DMF, DMAc, NMP, hot acetic anhydride; insoluble in water

• Stability: Hygroscopic, store sealed in dry and cool place

Uses

• One of the most widely used aromatic dianhydride monomers for high-performance polyimides (PI)

• Provides excellent thermal stability, mechanical strength, low thermal expansion coefficient, and good electrical insulation

• Used in high-temperature PI films, flexible printed circuits (FPC), aerospace composites, motor insulation, and electronic packaging materials

• HS Code: 2917399090