Description

Benzo[B]Benzo[4,5]Thieno[2,3-D]Thiophene is a high-purity fused heterocyclic organic compound, also known by its CAS number 248-70-4. This specialized chemical serves as a critical advanced organic semiconductor material and a versatile building block for complex molecular architectures. It is essential for researchers and manufacturers in the organic electronics and pharmaceutical intermediates sectors, where precise molecular structure dictates performance.

Application

• Organic Semiconductor Material: A key precursor for p-type organic field-effect transistors (OFETs) and organic photovoltaics (OPVs).
• OLED/PLED Development: Used in the synthesis of novel hole-transport or emissive layers for display and lighting technologies.
• Pharmaceutical Intermediate: Serves as a complex fused-ring scaffold in the research and synthesis of new active pharmaceutical ingredients (APIs).
• Chemical Research: A valuable building block in organic synthesis for creating extended π-conjugated systems and novel heterocyclic compounds.
• Material Science: Investigated for use in sensors and other advanced electronic devices due to its unique electronic properties.

Basic Information

Item	Details
Product Name	Benzo[B]Benzo[4,5]Thieno[2,3-D]Thiophene
CAS No.	248-70-4
Molecular Formula	C14H8S2
Molecular Weight	240.34 g/mol
Synonyms	Benzo[1,2-b:4,5-b']dithiophene; Benzo[b]benzo[4,5]thieno[2,3-d]thiophene; 2,3:6,7-Dibenzo[b,d]thiophene; BBT; BBT-T; Dibenzo[b,d]thiophene; Thianthrene benzo analogue; Contact for details on additional trade names.
EINECS	Contact for details

Quality Control

Our Benzo[B]Benzo[4,5]Thieno[2,3-D]Thiophene is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity and NMR for structural confirmation, to ensure it meets the exacting standards required for electronic and pharmaceutical applications. Certificates of Analysis (COA) detailing all specifications are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C). Due to its light-sensitive nature and potential for oxidation, long-term storage under an inert atmosphere (e.g., nitrogen or argon) is recommended for optimal stability.

Specification

Item	Specification
Appearance	Yellow to light brown crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details

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