【Chemical Name】 9,9-Bis(4-aminophenyl)fluorene
【Other Name】 BAF | FDA | BAFL | 4,4'-(9-Fluorenylidene)dianiline | Benzenamine, 4,4'-(9H-fluoren-9-ylidene)bis- | 9,9-Bis(4-aminophenyl)-9H-fluorene
【CAS No. 】 15499-84-0
【Molecular Formula】 C₂₅H₂₀N₂
【Molecular Weight】 348.44–348.45 g/mol
【Product properties】
| Property | Value |
| :--- | :--- |
| Appearance | White to almost white powder or crystal |
| Purity (HPLC) | ≥97.0 area% (standard); ≥99.5% (high purity) |
| Purity (GC / Titration) | ≥98.0%–≥99.0% |
| Melting Point | 236–239°C |
| Boiling Point | 535.2±50.0°C (predicted) |
| Density | 1.245±0.06 g/cm³ (predicted) |
| Solubility | Insoluble in water; soluble in DMF; slightly soluble in methanol and chloroform |
| pKa | 4.92±0.10 (predicted) |
| Physical State (20°C) | Solid |
【Storage】
Store in a well-closed, dry, cool and well-ventilated place. Keep away from light, moisture and strong oxidizing agents. Recommended storage temperature: room temperature in a dark place (preferably below 15°C). Stable under inert atmosphere.
【Packing】
- Standard: 1g, 5g, 25g, 100g, 500g (glass bottles with plastic insert or aluminum foil bags)
- Bulk: 1kg, 5kg, 10kg, 25kg (sealed bags, fiber drums with inner plastic liner, or cardboard drums)
- Customized packaging available upon request
【Application】
- High-performance polyimides: Key monomer for aromatic polyimides with excellent thermal stability, hydrolytic resistance, electrical insulation and mechanical properties, widely used in optical fiber light guide coatings, flexible films and composite materials.
- Optoelectronic materials: Organic hole-transporting material (dopant-free) in inverted perovskite solar cells; used in OLEDs, organic thin-film transistors (OTFTs) and other optoelectronic devices due to good fluorescence and electronic conduction properties.
- Polymer synthesis: Building block for polyamides, polyurethanes, epoxy resins and poly(pyridinium salt)s with lyotropic liquid-crystalline and light-emitting properties.
- Memory devices: Functional copolyimide component for tuning electrical memory behavior from nonvolatile to volatile.
- Chemical intermediate: Essential intermediate for specialty chemicals, advanced coatings, and functional electronic materials.
- R&D applications: Widely used in laboratory and industrial R&D for advanced material design and organic synthesis.
【Product Specification】
| Item | Specification |
| :--- | :--- |
| Purity (HPLC) | ≥97.0 area% – ≥99.5% |
| Purity (GC / Titration) | ≥98.0% – ≥99.0% |
| Appearance | White to almost white powder/crystal |
| Melting Point | 236–239°C |
| Water Solubility | Insoluble |
| Metal Ion Content (high purity grade) | Single metal ≤1 ppm |
| MDL Number | MFCD00039156 |
| HS Code | 2921.49.9090 / 2921.59.9090 |
| Storage Class | IRRITANT |