9,9-Bis(4-aminophenyl)fluorene NEW

9,9-Bis(4-aminophenyl)fluorene  15499-84-0

• Synonyms: FDA

Appearance:white powder 

Purity:99%min

Physical & Chemical Properties

• Molecular formula: C₂₅H₂₀N₂

• Molecular weight: 348.44 g/mol

• Melting point: 237–239 °C (lit.)

• Boiling point: 535.2 ± 50.0 °C (predicted)

• Density: 1.245 ± 0.06 g/cm³ (predicted)

• Flash point: 334.1 ± 29.6 °C

• Water solubility: Insoluble in water

• Storage: Keep in dark place, inert atmosphere, room temperature

• Key features: Aromatic diamine monomer; high thermal stability; good solubility in polar aprotic solvents; low dielectric constant

Applications

• Key monomer for synthesizing high‑performance polyimides (PI) with excellent thermal stability (Td5% = 530 °C) and optical transparency

• Used in transparent polyimide films for flexible electronics, OLED/LCD displays, and optical waveguides

• Applied in semiconductor passivation layers, high‑temperature adhesives, and microelectronic packaging materials

• Raw material for epoxy resins and advanced composite materials with high heat resistance

• Used as organic hole‑transporting material in perovskite solar cells

• HS Code: 2921590090