Description

9,9'-Spirobi[9H-Fluorene]-2,2'-Diamine is a high-purity, bifunctional aromatic amine building block of significant importance in advanced materials science. Its rigid, three-dimensional spirobifluorene core provides exceptional thermal stability and morphological control, making it a critical precursor for high-performance polymers and electronic materials. This compound is essential for R&D and production in the organic electronics, photonics, and specialty polymer industries, where precise molecular architecture dictates final product performance.

Application

• Organic Light-Emitting Diode (OLED) Materials: Serves as a key hole-transporting material (HTM) and host material in emissive layers for displays and lighting.
• Polyimide and Polyamide Synthesis: Acts as a diamine monomer for creating high-temperature, optically transparent engineering plastics with low dielectric constants.
• Photonics and Nonlinear Optics (NLO): Used in the development of chromophores and polymers for electro-optic modulators and frequency conversion devices.
• Cross-linking Agent for Epoxy Resins: Imparts enhanced thermal and mechanical properties to advanced composite matrices.
• Liquid Crystal Alignment Layers: Employed in the synthesis of polyimides for LCD manufacturing.
• Pharmaceutical Intermediate: Utilized in the research and synthesis of complex organic molecules with specific stereochemical requirements.
• Metal-Organic Framework (MOF) Ligand: Functions as a rigid organic linker for constructing porous coordination polymers with tailored pore geometries.

Basic Information

Product Name	9,9'-Spirobi[9H-Fluorene]-2,2'-Diamine
CAS No.	67665-45-6
Molecular Formula	C25H18N2
Molecular Weight	346.43 g/mol
Synonyms	2,2'-Diamino-9,9'-spirobi[9H-fluorene]; 9,9'-Spirobifluorene-2,2'-diamine; SBF-NH2; 2,2'-Diamino-9,9'-spirobifluorene; 2,2'-Diamino-SBF; 9,9'-Spirobi(fluorene)-2,2'-diyldiamine; 2,2'-Bis(amino)-9,9'-spirobi[9H-fluorene]
EINECS	Contact for details

Quality Control

Our 9,9'-Spirobi[9H-Fluorene]-2,2'-Diamine is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity for sensitive applications. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as assay, impurity profile, and physical characteristics. Our quality commitment aligns with the stringent requirements of the electronics and pharmaceutical intermediate sectors.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) in a cool, dry place at 15-25°C. This material is light-sensitive and easily oxidized; prolonged exposure to air and light must be avoided to maintain purity and performance.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	285 - 295 °C
Loss on Drying	≤ 0.5%
Heavy Metals (as Pb)	≤ 10 ppm
Residue on Ignition	≤ 0.1%
Single Impurity (HPLC)	≤ 0.5%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.