High-purity liquid crystal intermediates

2,3,3,4-biphenyl tetracarboxylic dianhydride   36978-41-3

Synonyms:a-BPDA

Appearance:off white powder 

Purity:99.9%min 

Physical and Chemical Properties

• Molecular formula: C₁₆H₆O₆

• Molecular weight: 294.22 g/mol

• Melting point: 218 – 223 °C

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

• Stability: Hygroscopic, keep sealed and dry

Uses

• High-performance monomer for polyimides (PI)

• Improves solubility, processability, thermal stability and mechanical properties of PI films

• Used in flexible printed circuits (FPC), high-temperature coatings, aerospace and electronic materials

• HS Code: 2917399090