Description

4,5-Dihydro-9H-Cyclohepta[2,1-B:4,5-B']Dithiophen-9-One CAS NO 40033-02-1 is a high-purity fused-ring heterocyclic compound featuring a unique dithiophene and cycloheptanone core structure. This specialized organic intermediate is valued for its role in the synthesis of advanced functional materials, particularly in the field of organic electronics. It is primarily sought by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and advanced materials sectors. Its complex polycyclic architecture makes it a critical building block for creating novel compounds with tailored electronic and optical properties.

Application

• Organic Semiconductor Precursor: A key monomer for synthesizing 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 active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Used in the research and development of novel herbicides, fungicides, and insecticides with complex heterocyclic structures.
• Ligand and Catalyst Development: The sulfur-containing fused ring system can be utilized to create novel ligands for catalysis and metal-organic frameworks (MOFs).
• Dye and Pigment Research: Acts as a core component in the synthesis of specialized dyes and pigments for high-performance applications.
• Material Science Research: Employed in academic and industrial R&D for exploring new organic electronic materials, including electrochromic devices and sensors.

Basic Information

Product Name	4,5-Dihydro-9H-Cyclohepta[2,1-B:4,5-B']Dithiophen-9-One
CAS No.	40033-02-1
Molecular Formula	C13H8OS2
Molecular Weight	244.33 g/mol
Synonyms	9H-Cyclohepta[2,1-b:4,5-b']dithiophen-9-one, 4,5-dihydro-; 4,5-Dihydrocyclohepta[2,1-b:4,5-b']dithiophen-9(9H)-one; Cyclohepta[2,1-b:4,5-b']dithiophen-9-one, 4,5-dihydro-; Dihydrocycloheptadithiophenone; Fused Dithiophenone Derivative; Contact for EINECS details.

Quality Control

Our production of 4,5-Dihydro-9H-Cyclohepta[2,1-B:4,5-B']Dithiophen-9-One adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC for purity, NMR and IR for structural confirmation, and residual solvent analysis by GC. We provide full traceability and Certificates of Analysis (COA) are available for all shipments, ensuring compliance with your research and development specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This compound is light-sensitive (store away from light) and should be handled under an inert atmosphere for long-term storage to prevent potential oxidation.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residual Solvents (GC)	Meets ICH guidelines

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