Description

4,8-Bis(4-Chloro-5-(2-Ethylhexyl)Thiophen-2-Yl)Benzo[1,2-B:4,5-B']Dithiophene is a high-purity, functionalized organic semiconductor building block designed for advanced materials research and development. This compound is critical for synthesizing high-performance conjugated polymers and small molecules due to its electron-deficient benzo[1,2-b:4,5-b']dithiophene (BDT) core and solubilizing side chains. It is primarily sought by R&D chemists and material scientists in the organic electronics sector for developing next-generation organic photovoltaics (OPVs), field-effect transistors (OFETs), and other optoelectronic devices.

Application

• Organic Photovoltaic (OPV) Materials: Serves as a key electron-accepting unit or comonomer in the synthesis of donor-acceptor (D-A) copolymers for high-efficiency solar cell active layers.
• Organic Field-Effect Transistors (OFETs): Used to develop n-type or ambipolar semiconducting polymers with enhanced electron mobility and air stability.
• Perovskite Solar Cells: Employed in the design of novel hole-transporting materials (HTMs) or interfacial layers to improve device performance and longevity.
• Organic Light-Emitting Diodes (OLEDs): Functions as an electron-transport material or host matrix in the emissive layer for specific color emission.
• Chemical Sensing: The tailored electronic properties make it suitable for developing sensitive layers in chemiresistive or fluorescent sensors.
• Academic & Industrial R&D: A fundamental building block for exploring structure-property relationships in conjugated materials and prototyping new electronic devices.

Basic Information

Product Name	4,8-Bis(4-Chloro-5-(2-Ethylhexyl)Thiophen-2-Yl)Benzo[1,2-B:4,5-B']Dithiophene
CAS No.	2237223-05-9
Molecular Formula	C38H42Cl2S4
Molecular Weight	701.88 g/mol
Synonyms	2,6-Bis(4-chloro-5-(2-ethylhexyl)thiophen-2-yl)benzo[1,2-b:4,5-b']dithiophene; BDT(2-EH-Th-Cl)2; 4,8-Bis[5-(2-ethylhexyl)-4-chloro-2-thienyl]benzo[1,2-b:4,5-b']dithiophene; Chlorinated BDT derivative; 4,8-Bis(4-chloro-5-(2-ethylhexyl)thiophen-2-yl)benzo[1,2-b:4,5-b']dithiophene; BDT-Th-Cl monomer; Organic semiconductor monomer CAS 2237223-05-9
EINECS	Contact for details

Quality Control

Every batch of our 4,8-Bis(4-Chloro-5-(2-Ethylhexyl)Thiophen-2-Yl)Benzo[1,2-B:4,5-B']Dithiophene is synthesized and purified under controlled conditions to ensure exceptional consistency and purity, meeting the stringent requirements of advanced materials research. We employ rigorous analytical protocols including HPLC, NMR, and elemental analysis to verify chemical identity and purity. A comprehensive Certificate of Analysis (COA) detailing batch-specific results is provided with each shipment to support your quality assurance and regulatory documentation.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). The compound is light-sensitive; prolonged exposure to light should be avoided to maintain stability. Keep the container sealed in a dry environment to prevent moisture absorption.

Specification

Item	Specification
Appearance	Yellow to orange solid
Identification (HPLC)	Retention time corresponds to reference standard
Identification (1H NMR)	Spectrum consistent with structure
Purity (HPLC)	≥ 98.0% (Area %)
Residual Solvents (GC)	Meets ICH guidelines

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