Description

2,7-Bis(4,4,5,5-Tetramethyl-1,3,2-Dioxaborolane-2-Yl)-9,9-Dihexyl-9H-9-Dibenzosilole is a high-purity, functionalized dibenzosilole derivative featuring two pinacol boronate ester groups. This compound is a critical advanced organic intermediate for the synthesis of novel semiconducting polymers and small molecules used in organic electronics. It is primarily sought by R&D and production teams in the organic light-emitting diode (OLED) and organic photovoltaic (OPV) sectors, where it enables precise molecular engineering for enhanced device performance.

Application

• Key Monomer for Conjugated Polymers: Serves as a crucial building block in Suzuki-Miyaura cross-coupling polymerizations to create donor-acceptor (D-A) type polymers for OLED emissive layers and OPV active layers.
• Synthesis of Small Molecule Emitters: Used to construct high-efficiency, solution-processable small molecule hosts and dopants for OLED displays and lighting.
• Organic Semiconductor Research: A valuable precursor for developing new electron-transporting or ambipolar materials in academic and industrial research laboratories.
• Material for Perovskite Solar Cells: Employed in the synthesis of organic hole-transport materials (HTMs) or interfacial layers to improve the stability and efficiency of perovskite solar cells.
• Organic Thin-Film Transistors (OTFTs): Used to develop novel semiconducting materials for flexible and printed electronics applications.

Basic Information

Product Name	2,7-Bis(4,4,5,5-Tetramethyl-1,3,2-Dioxaborolane-2-Yl)-9,9-Dihexyl-9H-9-Dibenzosilole
CAS No.	852138-91-1
Molecular Formula	C40H62B2O4Si
Molecular Weight	656.53 g/mol
Synonyms	9,9-Dihexyl-2,7-bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-9H-silolo[3,2-b:4,5-b']dithiophene (common alternate naming); 2,7-Bis(pinacolboron ester)-9,9-dihexyl-9H-dibenzosilole; 9,9-Dihexyl-2,7-bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-9H-dibenzosilole; 2,7-Diboronic acid bis(pinacol ester)-9,9-dihexyl-9H-dibenzosilole; 2,7-Bis(Pinacolatoboron)-9,9-dihexyl-9H-dibenzosilole; 2,7-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-9,9-dihexyl-9H-silolo[3,2-b:4,5-b']dithiophene; DHSi2Bpin2; Contact for details on additional trade names.
EINECS	Contact for details

Quality Control

Every batch of this high-value electronic chemical is characterized using advanced analytical techniques to ensure exceptional purity and batch-to-batch consistency, critical for reproducible device performance. Our quality system ensures compliance with stringent internal specifications tailored for optoelectronic applications. Comprehensive Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 2-8°C or as indicated on the label. This material is hygroscopic (moisture-sensitive). For long-term storage, consider storing under an inert atmosphere (argon or nitrogen) in a sealed container to maintain optimal purity and reactivity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0% (Area %)
Purity (NMR)	≥ 97.0%
Water Content (KF)	≤ 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.