Description

9,9-Bis(4-amino-3-fluorophenyl)fluorene (CAS No. 127926-65-2) is a high-purity aromatic diamine compound with the molecular formula C₂₅H₁₈F₂N₂. This specialized chemical features a fluorene core symmetrically substituted with two 4-amino-3-fluorophenyl groups, offering unique electronic and steric properties. The compound is supplied as a fine powder or crystalline solid with ≥98% purity (HPLC), ideal for advanced material synthesis. Its bifunctional amino groups and fluorinated aromatic rings make it particularly valuable as a monomer for polyimides, epoxy resins, and other high-performance polymers. Proper storage under inert atmosphere at 2-8°C is recommended to maintain stability.

Properties

• CAS Number: 127926-65-2
• Complexity: 533
• IUPAC Name: 4-[9-(4-amino-3-fluoro-phenyl)fluoren-9-yl]-2-fluoro-aniline
• InChI: InChI=1S/C25H18F2N2/c26-21-13-15(9-11-23(21)28)25(16-10-12-24(29)22(27)14-16)19-7-3-1-5-17(19)18-6-2-4-8-20(18)25/h1-14H,28-29H2
• InChI Key: RXNKCIBVUNMMAD-UHFFFAOYSA-N
• Exact Mass: 384.14380491
• Molecular Formula: C25H18F2N2
• Molecular Weight: 384.4
• SMILES: C1=CC=C2C(=C1)C3=CC=CC=C3C2(C4=CC(=C(C=C4)N)F)C5=CC(=C(C=C5)N)F
• Topological: 52
• Monoisotopic Mass: 384.14380491
• Synonyms: 9,9-Bis(4-amino-3-fluorophenyl)fluorene, 678-173-2, 127926-65-2, 4,4′-(9H-Fluorene-9,9-diyl)bis(2-fluoroaniline), 4-[9-(4-amino-3-fluorophenyl)fluoren-9-yl]-2-fluoroaniline, MFCD08276304, 9,9-Bis(3-fluoro-4-aminophenyl) fluorene(FFDA), 9,9-Bis(3-fluoro-4-aminophenyl)fluorene, SCHEMBL2405956, DTXSID90659748, RXNKCIBVUNMMAD-UHFFFAOYSA-N, C25H18F2N2, BCP11772, AKOS015854682, DS-14008, SY054283, DB-041878, B2691, CS-0155946, D70152, 9,9-Bis(4-amino-3-fluorophenyl)fluorene, 98%, 2,2′-Difluoro-4,4′-(9-fluorenylidene)dianiline, 9,9-Bis(3-fluoro-4-aminophenyl)fluor ene (FFDA), 4,4 inverted exclamation mark -(9H-Fluorene-9,9-diyl)bis(2-fluoroaniline)

Application

This fluorinated diamine serves as a critical building block for thermally stable polyimides in aerospace and microelectronics applications. The compound’s rigid fluorene backbone enhances mechanical strength while the fluorine atoms improve solubility and dielectric properties in polymer matrices. Researchers utilize it to develop advanced adhesives, composite materials, and optoelectronic devices requiring high thermal and chemical resistance.

Safety and Hazards

GHS Hazard Statements

• H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]
• H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]

Precautionary Statements

• P264, P264+P265, P280, P302+P352, P305+P351+P338, P321, P332+P317, P337+P317, and P362+P364

Hazard Classes and Categories

• Skin Irrit. 2 (100%)
• Eye Irrit. 2 (100%)

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