Description

4'-Bromo-2,7-Di-tert-Butyl-9,9'-Spirobi[Fluorene] is a high-purity, functionalized spirobifluorene derivative, a key structural motif in advanced materials science. This compound matters for its role as a sophisticated building block in the synthesis of organic semiconductors and optoelectronic materials, where its bromo functionality enables further cross-coupling reactions. It is essential for R&D and production teams in the organic light-emitting diode (OLED), organic photovoltaic (OPV), and specialty polymer industries seeking to develop next-generation electronic devices.

Application

• OLED Materials: Serves as a crucial precursor or host material in the synthesis of emissive and charge-transport layers for high-efficiency displays and lighting.
• Organic Photovoltaics (OPV): Used as a building block for electron-donor or acceptor materials in the active layer of solar cells.
• Organic Field-Effect Transistors (OFETs): Acts as a component in the development of high-mobility semiconducting polymers and small molecules.
• Luminescent Materials: Employed in the design of novel fluorescent dyes and pigments for sensing and imaging applications.
• Polymer Synthesis: Functions as a monomer or cross-linking agent for creating high-performance, thermally stable polymers with specific electronic properties.
• Academic & Industrial R&D: A valuable intermediate for chemists exploring new conjugated systems and their structure-property relationships.

Basic Information

Product Name	4'-Bromo-2,7-Di-tert-Butyl-9,9'-Spirobi[Fluorene]
CAS No.	1365480-13-2
Molecular Formula	C₃₃H₃₅Br
Molecular Weight	511.54 g/mol
Synonyms	9,9'-Spirobi[9H-fluorene], 4'-bromo-2,7-bis(1,1-dimethylethyl)-; 4'-Bromo-2,7-di-tert-butylspirobifluorene; 2,7-Di-tert-butyl-4'-bromo-9,9'-spirobi[9H-fluorene]; SBF-Br derivative; Bromo-functionalized spirobifluorene; Br-SBF-tBu; Contact for additional synonyms.
EINECS	Contact for details

Quality Control

Our 4'-Bromo-2,7-Di-tert-Butyl-9,9'-Spirobi[Fluorene] is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC, NMR, and GC-MS, to ensure high purity and batch-to-batch consistency critical for sensitive electronic applications. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at room temperature (15-25°C). The compound is light-sensitive (store away from light). Keep container tightly sealed in a dry environment to prevent moisture absorption.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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