Description

4,7-Diethynylbenzo[C][1,2,5]Thiadiazole is a high-purity, specialized organic building block featuring a fused benzothiadiazole core with terminal ethynyl groups. This compound matters for its role as a critical precursor in the synthesis of advanced conjugated polymers and small molecules for optoelectronic applications. It is essential for researchers and manufacturers in organic electronics, particularly those developing next-generation organic photovoltaics (OPVs), organic light-emitting diodes (OLEDs), and field-effect transistors (OFETs). Its unique structure enables precise tuning of electronic properties and efficient π-conjugation in the final materials.

Application

• Organic Photovoltaic (OPV) Materials: Serves as a key electron-accepting or bridging unit in donor-acceptor copolymers and small molecule acceptors for solar cells.
• Organic Light-Emitting Diodes (OLEDs): Used in the synthesis of emissive layer materials and host compounds to enhance device efficiency and color purity.
• Organic Field-Effect Transistors (OFETs): Acts as a building block for high-mobility semiconducting polymers and small molecules.
• Conjugated Polymer Synthesis: A fundamental monomer for constructing linear and cross-linked conjugated polymers via Sonogashira or other cross-coupling reactions.
• Nonlinear Optical (NLO) Materials: Investigated for use in materials with high second- or third-order nonlinear optical susceptibility.
• Chemical Sensing: Incorporated into polymeric or molecular frameworks for the detection of specific analytes due to its fluorogenic properties.
• Academic & Industrial R&D: A valuable reagent for exploring new organic electronic materials and structure-property relationships.

Basic Information

Item	Details
Product Name	4,7-Diethynylbenzo[C][1,2,5]Thiadiazole
CAS No.	316384-85-7
Molecular Formula	C10H4N2S
Molecular Weight	184.22 g/mol
Synonyms	4,7-Diethynyl-2,1,3-benzothiadiazole; 2,1,3-Benzothiadiazole, 4,7-diethynyl-; Benzo[c][1,2,5]thiadiazole, 4,7-diethynyl-; 4,7-Diethynylbenzo-2,1,3-thiadiazole; 4,7-Diethynyl-BTD; BTD-DA; DEBT
EINECS	Contact for details

Quality Control

Our production of 4,7-Diethynylbenzo[C][1,2,5]Thiadiazole adheres to stringent quality protocols to ensure batch-to-batch consistency and high purity, which is critical for sensitive electronic applications. Each lot undergoes comprehensive analytical characterization, including HPLC for purity assessment and NMR for structural confirmation. A detailed Certificate of Analysis (COA) documenting identity, purity, and impurity profiles is provided with every shipment to support your quality assurance and R&D processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at room temperature (15-25°C). This compound is light-sensitive (store away from light). For long-term storage, consider storing under an inert atmosphere such as argon or nitrogen to prevent potential oxidation.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0% (Area %)
Melting Point	Contact for details

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