Description

(4,4'-(Cyclopent-1-Ene-1,2-Diyl)Bis(5-Methylthiophene-4,2-Diyl))Diboronic Acid is a high-purity, advanced organic building block featuring a rigid cyclopentene core flanked by two boronic acid-functionalized thiophene units. This compound matters for its role as a critical precursor in the synthesis of complex conjugated polymers and organic electronic materials via Suzuki-Miyaura cross-coupling reactions. It is essential for R&D scientists and production chemists in the organic semiconductor, OLED, and pharmaceutical intermediates sectors who require precise molecular control and reliable synthetic performance.

Application

• Organic Semiconductor Synthesis: A key monomer for constructing donor-acceptor (D-A) type conjugated polymers used in organic field-effect transistors (OFETs) and organic photovoltaics (OPVs).
• OLED Material Development: Serves as a building block for emissive layer hosts, hole-transport materials, and electron-transport materials in light-emitting diodes.
• Pharmaceutical Intermediate: Used in the synthesis of complex, drug-like molecules and bioactive compounds, leveraging the boronic acid functionality for selective coupling.
• Polymer Chemistry: Enables the creation of novel thiophene-based copolymers with tailored optical and electronic properties for sensor applications.
• Material Science R&D: Employed in research for developing new organic electronic materials, including non-fullerene acceptors for solar cells.
• Cross-Coupling Reactions: A reliable reagent for Suzuki-Miyaura cross-coupling, facilitating the formation of carbon-carbon bonds in complex molecular architectures.

Basic Information

Product Name	(4,4'-(Cyclopent-1-Ene-1,2-Diyl)Bis(5-Methylthiophene-4,2-Diyl))Diboronic Acid
CAS No.	608528-48-9
Molecular Formula	C17H18B2O4S2
Molecular Weight	372.08 g/mol
Synonyms	4,4'-(Cyclopent-1-ene-1,2-diyl)bis(5-methylthiophene-4,2-diyl)diboronic acid; 2,2'-(Cyclopent-1-ene-1,2-diyl)bis(5-methyl-4-thiopheneboronic acid); [4,4'-(Cyclopent-1-ene-1,2-diyl)bis(5-methylthiophene-2,4-diyl)]diboronic acid; CP-BT-B(OH)2; Cyclopentene-bridged bithiophene diboronic acid; 5,5'-Dimethyl-4,4'-bithiophene-2,2'-diylbis(boronic acid) cyclopentene derivative; CAS 608528-48-9
EINECS	Contact for details

Quality Control

Our (4,4'-(Cyclopent-1-Ene-1,2-Diyl)Bis(5-Methylthiophene-4,2-Diyl))Diboronic Acid is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity for demanding synthetic applications. All products undergo rigorous analytical testing, including HPLC, NMR, and elemental analysis, to verify identity and purity. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with each shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. This material is hygroscopic (moisture-sensitive). For long-term stability, store under an inert atmosphere (argon or nitrogen) at a controlled room temperature (15-25°C). Keep the container tightly sealed in a cool, dry, and well-ventilated place.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Heavy Metals	≤ 20 ppm

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