Description

Thieno[3,4-B]Thiophene CAS NO 250-65-7 is a high-purity fused heterocyclic compound, a key building block in advanced organic electronic materials. Its unique conjugated structure makes it an essential precursor for synthesizing high-performance semiconducting polymers and small molecules. This specialty chemical is primarily required by R&D laboratories and manufacturers in the organic electronics, photovoltaics, and advanced materials sectors for developing next-generation devices.

Application

• Organic Semiconductor Synthesis: A critical monomer for constructing donor-acceptor copolymers used in Organic Field-Effect Transistors (OFETs) and Organic Photovoltaics (OPVs).
• Polymer Solar Cell Development: Serves as a core unit in low-bandgap polymers designed to enhance light absorption and power conversion efficiency in bulk-heterojunction solar cells.
• Electroluminescent Materials: Used in the research and production of materials for Organic Light-Emitting Diodes (OLEDs) due to its favorable charge transport properties.
• Chemical Research & Development: A valuable intermediate for academic and industrial research into novel conjugated systems and heterocyclic chemistry.
• Photodetector and Sensor Materials: Incorporated into organic materials for sensing applications, leveraging its photophysical characteristics.

Basic Information

Product Name	Thieno[3,4-B]Thiophene
CAS No.	250-65-7
Molecular Formula	C6H4S2
Molecular Weight	140.22 g/mol
Synonyms	Thieno[3,4-b]thiophene; [1]Benzothieno[3,4-b]thiophene; Benzo[4,5]thieno[3,4-b]thiophene; 1-Benzothieno[3,4-b]thiophene; Thieno(3,4-b)thiophene; 250-65-7; Thieno[3,4-b]thiophene, 97%
EINECS	205-978-2

Quality Control

Our Thieno[3,4-B]Thiophene is manufactured under strict quality protocols to ensure batch-to-batch consistency for sensitive electronic applications. We provide comprehensive analytical data, including HPLC purity, NMR, and GC-MS characterization. A Certificate of Analysis (COA) detailing all specifications is supplied with every shipment to support your quality assurance and R&D documentation.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Keep away from strong oxidizing agents. For long-term storage, consider storing under an inert atmosphere to maintain optimal purity.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details

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