Description

8,9-Dihydro-4H-Cyclohepta[1,2-C:4,5-C']Dithiophen-4-One is a specialized fused-ring heterocyclic compound featuring a unique dithiophene core structure. This molecular architecture makes it a valuable advanced intermediate for the synthesis of complex organic electronic materials and functional dyes. It is primarily sought by R&D chemists and process development teams in the pharmaceutical, agrochemical, and materials science sectors for constructing novel molecular frameworks.

Application

• Organic Semiconductor Precursor: A key building block for the synthesis of novel conjugated polymers and small molecules used in organic field-effect transistors (OFETs) and organic photovoltaics (OPVs).
• Pharmaceutical Intermediate: Serves as a sophisticated scaffold in medicinal chemistry for the development of new drug candidates with potential biological activity.
• Agrochemical Research: Used in the creation of new active ingredients for crop protection products, leveraging its complex heterocyclic structure.
• Functional Dye Synthesis: Acts as a core component for developing advanced dyes and pigments with specific optical or electronic properties.
• Ligand and Catalyst Development: Employed in organometallic chemistry to create novel ligands for catalytic systems.
• Academic and Industrial R&D: A critical reagent for fundamental research in synthetic organic chemistry and materials science.

Basic Information

Product Name	8,9-Dihydro-4H-Cyclohepta[1,2-C:4,5-C']Dithiophen-4-One
CAS No.	40033-07-6
Molecular Formula	C11H6OS2
Molecular Weight	218.29 g/mol
Synonyms	4H-Cyclohepta[1,2-c:4,5-c']dithiophene-4-one, 8,9-dihydro-; 8,9-Dihydro-4H-cyclohepta[1,2-c:4,5-c']dithiophene-4-one; Dihydrocycloheptadithiophenone; Cycloheptadithiophenone derivative; Fused dithiophenone; Thieno[3,2-f]thieno[2',3':4,5]cyclohepta[1,2-d][1,3]oxol-6-one (related structure); Advanced dithiophene intermediate
EINECS	Contact for details

Quality Control

Our production of 8,9-Dihydro-4H-Cyclohepta[1,2-C:4,5-C']Dithiophen-4-One adheres to stringent internal quality standards to ensure batch-to-batch consistency and high purity for research and development applications. Certificates of Analysis (COA) detailing identity, purity, and impurity profiles are provided with each shipment. We support custom synthesis and can tailor specifications, including purity grades, to meet specific project requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (typically 15-25°C). Keep away from incompatible materials. For long-term storage, consider an inert atmosphere to preserve stability.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0% (Area %)
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.