Description

2,2',7,7'-Tetrabromo-9,9'-Bifluorenylidene is a high-purity, polycyclic aromatic compound characterized by its bifluorenylidene core structure with four bromine substituents. This chemical is valued for its role as a key intermediate and functional material in advanced organic synthesis and materials science. It is primarily sought by R&D laboratories and manufacturers in the electronics, photonics, and specialty chemical industries for developing novel organic semiconductors, light-emitting materials, and other high-performance additives.

Application

• Organic Electronics: As a precursor or dopant in the synthesis of organic semiconductors for OLEDs (Organic Light-Emitting Diodes) and OFETs (Organic Field-Effect Transistors).
• Photoresist & Lithography: Serving as a functional monomer or additive in advanced photoresist formulations for high-resolution semiconductor manufacturing.
• Polymer Modification: Acting as a flame retardant or cross-linking agent to enhance the thermal stability and mechanical properties of engineering plastics.
• Liquid Crystal Displays (LCDs): Utilized in the development of components for liquid crystal mixtures to modify electro-optical properties.
• Research & Development: A critical building block in academic and industrial R&D for creating novel conjugated molecules and exploring structure-property relationships.
• Dye & Pigment Intermediates: Used in the synthesis of specialized dyes and pigments requiring high thermal and photochemical stability.

Basic Information

Item	Details
Product Name	2,2',7,7'-Tetrabromo-9,9'-Bifluorenylidene
CAS No.	27192-91-2
Molecular Formula	C26H12Br4
Molecular Weight	667.99 g/mol
Synonyms	9,9'-Bifluorenylidene, 2,2',7,7'-tetrabromo-; 2,2',7,7'-Tetrabromo-9,9'-bifluorene; TBBD; Tetrabromobifluorenylidene; 2,2',7,7'-Tetrabromobifluorenylidene; 2,2',7,7'-Tetrabromo-9,9'-bifluorenyl; 2,2',7,7'-Tetrabromo-9H,9'H-9,9'-bifluorenylidene
EINECS	Contact for details

Quality Control

Our production of 2,2',7,7'-Tetrabromo-9,9'-Bifluorenylidene adheres to a stringent quality management system. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via FT-IR and NMR spectroscopy, to ensure consistent high quality and batch-to-batch reproducibility. Certificates of Analysis (COA) detailing all specifications are provided and can be tailored to meet specific customer or research requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from heat, sparks, and open flames. Due to its light-sensitive nature, prolonged exposure to direct light should be avoided.

Specification

Item	Specification
Appearance	Yellow to orange 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%
Heavy Metals (as Pb)	≤ 20 ppm

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