Description

4H-Cyclopenta[2,1-B:3,4-B']Dithiophene-2-Carboxaldehyde, 6-Bromo-4,4-Bis(2-Ethylhexyl)- is a high-purity, functionalized organic semiconductor building block. This compound is critical for the synthesis of advanced conjugated polymers and small molecules used in next-generation electronic devices. It is primarily sought by R&D chemists and material scientists in the organic electronics and photovoltaics sectors for developing high-performance materials.

Application

• Organic Photovoltaic (OPV) Cells: Serves as a key electron-donor or acceptor precursor in polymer solar cells for enhanced light absorption and charge transport.
• Organic Field-Effect Transistors (OFETs): Used to synthesize semiconducting polymers for high-mobility, flexible electronic circuits and displays.
• Perovskite Solar Cells: Employed as a hole-transport material (HTM) or an interfacial layer component to improve device stability and efficiency.
• Organic Light-Emitting Diodes (OLEDs): Acts as a building block for emissive or charge-transport layers in display and lighting technologies.
• Chemical Research & Development: A versatile intermediate for synthesizing novel π-conjugated systems and exploring structure-property relationships.
• Dye-Sensitized Solar Cells (DSSCs): Can be incorporated into sensitizer or electrolyte formulations to optimize photon conversion.

Basic Information

Product Name	4H-Cyclopenta[2,1-B:3,4-B']Dithiophene-2-Carboxaldehyde, 6-Bromo-4,4-Bis(2-Ethylhexyl)-
CAS No.	2256724-33-9
Molecular Formula	C27H35BrOS2
Molecular Weight	519.59 g/mol
Synonyms	6-Bromo-4,4-bis(2-ethylhexyl)-4H-cyclopenta[2,1-b:3,4-b']dithiophene-2-carboxaldehyde; 6-Bromo-4,4-di(2-ethylhexyl)-4H-cyclopenta[2,1-b:3,4-b']dithiophene-2-carbaldehyde; CPADT-Br-CHO; 6-Br-4,4-bis(EH)-CPDT-CHO; Brominated CPDT Aldehyde Derivative; Organic Semiconductor Monomer 2256724-33-9; 4,4-Bis(2-ethylhexyl)-6-bromo-4H-cyclopenta[2,1-b:3,4-b']dithiophene-2-carboxaldehyde
EINECS	Contact for details

Quality Control

Every batch of this advanced intermediate is produced and analyzed under strict quality management protocols to ensure consistency and purity for sensitive electronic applications. Standard quality verification includes HPLC for purity and NMR for structural confirmation. A comprehensive Certificate of Analysis (COA) detailing batch-specific results is provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) at a controlled room temperature (15-25°C) in a dry, cool place. This compound is easily oxidized and light-sensitive; prolonged exposure to air or light should be avoided to maintain product integrity.

Specification

Item	Specification
Appearance	Yellow to orange solid
Identification (HPLC)	Conforms to reference standard
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 97.0% (Area %)
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.