benzo[1,2-b:4,5-b']difuran-2,6(3H,7H)-dione

Benzo[1,2-b:4,5-b']difuran-2,6(3H,7H)-dione is a specialized organic building block widely used in academic and industrial research laboratories for the synthesis of advanced functional materials. The compound belongs to the class of benzodifuran-dione derivatives, characterized by a unique fused difuran ring system that confers specialized reactivity and electronic properties. Benzo[1,2-b:4,5-b']difuran-2,6(3H,7H)-dione serves as a powerful electron-acceptor building block for the development of organic electronics materials. In polymer chemistry, Benzo[1,2-b:4,5-b']difuran-2,6(3H,7H)-dione is used as a precursor for the synthesis of (3E,7E)-3,7-bis(2-oxoindolin-3-ylidene)benzo[1,2-b:4,5-b']difuran-2,6(3H,7H)-dione (IBDF)-based donor-acceptor polymer semiconductors. The rigid, electron-deficient framework of Benzo[1,2-b:4,5-b']difuran-2,6(3H,7H)-dione enables the construction of polymers with very low-lying energy levels, which is critical for achieving high electron mobility in organic field-effect transistors and n-type conducting materials.

Product Parameters

Why Cosperpharm?

When your organic electronics research or advanced materials development requires reliable, high-purity building blocks, Cosperpharm delivers Benzo[1,2-b:4,5-b']difuran-2,6(3H,7H)-dione with the analytical integrity and supply chain reliability that research institutions and industrial laboratories demand.

Purity that enables reproducible results. The electronic properties of donor-acceptor polymers are exquisitely sensitive to trace impurities in the monomeric building blocks. Our analytical release protocol for Benzo[1,2-b:4,5-b']difuran-2,6(3H,7H)-dione includes GC purity verification (>98.0%), appearance inspection, and NMR structure confirmation—because your device performance depends on the quality of this electron-acceptor scaffold.

Documentation that supports your research. Every shipment includes a Certificate of Analysis (COA) with batch-specific purity data, chromatographic traceability, and structural confirmation. Custom quality documentation is available upon request for customers requiring detailed analytical records.

Flexible supply for all research scales. Cosperpharm supplies Benzo[1,2-b:4,5-b']difuran-2,6(3H,7H)-dione across the full range of applications—from gram-scale quantities for exploratory materials discovery to multi-kilogram batches for process development and scale-up. R&D samples ship within 5–7 business days.

Technical support from materials chemists. Our team understands the unique requirements of organic electronics research and can advise on handling, storage, and compatibility considerations for this moisture-sensitive compound.

Global reach with transparent pricing. Cosperpharm ships to research institutions, universities, and industrial laboratories worldwide, with full customs documentation included. Volume discounts apply at larger scales.

Product Advantages

 Rigid, Planar, π-Extended Fused Ring System

Benzo[1,2-b:4,5-b']difuran-2,6(3H,7H)-dione features a fully planar, ladder-type fused ring architecture that maximizes π-orbital overlap and facilitates efficient charge transport. The rigid conformation minimizes conformational disorder, a critical advantage for achieving high charge-carrier mobility in organic thin-film transistors.

 Exceptionally Strong Electron-Accepting Properties

The two lactone carbonyl groups and the extended π-conjugation render Benzo[1,2-b:4,5-b']difuran-2,6(3H,7H)-dione a powerful electron-acceptor building block. When incorporated into donor-acceptor polymers, this scaffold creates very low-lying energy levels that enable n-type and ambipolar charge transport, high electrical conductivity, and promising thermoelectric performance.

 Zero Rotatable Bonds for Maximum Structural Rigidity

With zero rotatable bonds, Benzo[1,2-b:4,5-b']difuran-2,6(3H,7H)-dione locks its molecular geometry into a fixed conformation. This rigidity translates directly into predictable intermolecular packing and consistent electronic properties in thin-film devices—attributes essential for reproducible device fabrication.

 Versatile Precursor for IBDF-Based Polymers

Benzo[1,2-b:4,5-b']difuran-2,6(3H,7H)-dione is the essential precursor for synthesizing (3E,7E)-3,7-bis(2-oxoindolin-3-ylidene)benzo[1,2-b:4,5-b']difuran-2,6(3H,7H)-dione (IBDF), a widely studied electron-acceptor building block for polymer semiconductors. IBDF-based polymers have demonstrated exceptional performance in n-type organic thin-film transistors, flexible field-effect transistors, and n-doped conducting polymers.

 Thermally Stable and Easy to Handle

With a melting point of 282 °C, Benzo[1,2-b:4,5-b']difuran-2,6(3H,7H)-dione exhibits excellent thermal stability suitable for high-temperature processing. The compound is a solid at room temperature, making it convenient to weigh, handle, and incorporate into polymer synthesis workflows.

Product Quality Assurance

Cosperpharm has established a comprehensive quality assurance system for Benzo[1,2-b:4,5-b']difuran-2,6(3H,7H)-dione that meets the rigorous expectations of materials science research and industrial applications:

Thorough analytical characterization. Each batch undergoes multi-technique analytical release testing: GC purity (>98.0%), appearance verification (white to light yellow powder to crystal), and NMR confirmation of molecular structure. Physical properties are verified in accordance with established specifications.

Full batch traceability with retention samples. From raw material procurement through synthesis, purification, drying, and final packaging, every step is fully documented and traceable. Each batch receives a unique lot number with sufficient retention samples maintained in accordance with Cosperpharm quality procedures.

Stability monitoring program. Cosperpharm conducts ongoing stability studies under recommended storage conditions. Stability summaries are available to support customer research documentation needs.

Documentation ready for research use. Every shipment includes a Certificate of Analysis (COA) with batch-specific purity and characterization data, and customs documentation for international delivery. Custom quality documentation is available upon request.

Customer-initiated quality audits. Qualified customers are welcome to audit Cosperpharm's manufacturing, quality control, and documentation facilities. Please contact our regulatory team to schedule an audit.

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