Description

Bis[1]Benzothieno[2,3-E:2',3'-G]Isobenzofuran-6,8-Dione is a high-purity, specialized organic compound belonging to the class of fused heterocyclic diketones. This material serves as a critical advanced intermediate or functional building block in the synthesis of complex organic electronic materials and pharmaceuticals. It is primarily required by R&D laboratories and industrial manufacturers focused on developing novel organic semiconductors, pigments, and active pharmaceutical ingredients (APIs).

Application

• Organic Semiconductor Precursor: A key building block for n-type organic semiconductors and electron-transport materials used in OLEDs, OFETs, and perovskite solar cells.
• Pharmaceutical Intermediate: Utilized in the synthesis of complex heterocyclic compounds with potential biological activity for drug discovery programs.
• Functional Dye & Pigment Synthesis: Serves as a core structure for creating high-performance pigments and dyes with specific optical and electronic properties.
• Material Science Research: Employed in academic and industrial R&D for developing novel conjugated polymers and small molecules with tailored electronic characteristics.
• Electron-Acceptor Unit: Incorporated into molecular designs requiring strong electron-accepting moieties for charge-transfer complexes and non-linear optical materials.

Basic Information

Product Name	Bis[1]Benzothieno[2,3-E:2',3'-G]Isobenzofuran-6,8-Dione
CAS No.	65689-56-7
Molecular Formula	C22H8O4S2
Molecular Weight	400.43 g/mol
Synonyms	Bis(benzothieno)isobenzofuran-6,8-dione; 6,8-Dioxobis[1]benzothieno[2,3-e:2',3'-g]isobenzofuran; DBBIF; Bisbenzothienoisobenzofurandione; Thienoisobenzofurandione derivative; [1]Benzothieno[2,3-e][1]benzothieno[2',3':4,5]furo[2,3-g]isobenzofuran-6,8-dione
EINECS	Contact for details

Quality Control

Our production of Bis[1]Benzothieno[2,3-E:2',3'-G]Isobenzofuran-6,8-Dione adheres to stringent internal quality standards to ensure batch-to-batch consistency and high purity for research and industrial use. Each lot is characterized using advanced analytical techniques including HPLC, NMR, and mass spectrometry. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment.

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 the container sealed to minimize exposure to atmospheric moisture. Store away from incompatible materials such as strong bases and reducing agents.

Specification

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