Description

(2,7-Bis(4,4,5,5-Tetramethyl-1,3,2-Dioxaborolan-2-Yl)-9,9-Dioctylfluorene) is a high-purity, functionalized fluorene derivative featuring pinacol boronate ester groups at the 2,7-positions. This compound is a critical key monomer and building block in the synthesis of advanced organic electronic materials, enabling precise polymer chain growth and functionalization. It is primarily required by R&D and production teams in the organic semiconductor, OLED, and polymer solar cell industries for creating high-performance conjugated polymers and small molecules.

Application

• Suzuki-Miyaura Cross-Coupling Monomer: Essential building block for synthesizing conjugated polymers used in OLED emissive layers, hole/electron transport materials, and organic photovoltaics (OPVs).
• Polyfluorene Derivative Synthesis: Serves as a core monomer for producing poly(9,9-dioctylfluorene) and its copolymers, known for their blue light emission and high charge carrier mobility.
• Organic Electronic Material R&D: Used in research laboratories to develop new semiconducting polymers and small molecules for flexible displays and lighting applications.
• Photovoltaic Material Production: Key precursor in the manufacture of donor or acceptor materials for bulk heterojunction solar cells.
• Material for Organic Thin-Film Transistors (OTFTs): Employed in the synthesis of semiconducting polymers for high-mobility OTFTs.
• Luminescent Material Fabrication: Used to create tailored fluorescent and phosphorescent materials for sensor and bio-imaging applications.

Basic Information

Product Name	(2,7-Bis(4,4,5,5-Tetramethyl-1,3,2-Dioxaborolan-2-Yl)-9,9-Dioctylfluorene)
CAS No.	196207-58-6
Molecular Formula	C45H72B2O4
Molecular Weight	698.66 g/mol
Synonyms	9,9-Dioctylfluorene-2,7-diboronic acid bis(pinacol) ester; 2,7-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-9,9-dioctyl-9H-fluorene; 9,9-Dioctyl-2,7-bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)fluorene; 2,7-Diboronic acid pinacol ester of 9,9-dioctylfluorene; F8-2,7-diboronate; DOF-Bpin2; Fluorene-2,7-diboronic acid bis(1,2,2,6,6-pentamethylpiperidine) ester (common alternative); 2,7-Bis(Bpin)-9,9-dioctylfluorene
EINECS	Contact for details

Quality Control

Every batch of this advanced monomer is produced and analyzed under strict inert atmosphere conditions to prevent oxidation and hydrolysis. We employ rigorous chromatographic and spectroscopic methods (HPLC, NMR, GC) to ensure exceptional purity and batch-to-batch consistency, which is critical for reproducible polymer synthesis and device performance. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Due to its moisture-sensitive (hygroscopic) and easily oxidized nature, this material must be stored under an inert atmosphere (argon or nitrogen) in a cool, dry place. For long-term stability, storage at 2-8°C is recommended. Allow the sealed container to equilibrate to room temperature before opening to prevent moisture condensation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
Identification (HPLC)	Conforms to reference standard
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 98.0% (Area %)
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm

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