Description

4H-Silolo[3,2-B:4,5-B']Dithiophene, 4,4-Bis(2-Ethylhexyl)-2-(Trimethylstannyl)- is a high-purity, functionalized organotin intermediate critical for advanced materials synthesis. This compound matters as a key building block in the development of next-generation organic electronic materials, enabling precise molecular engineering. It is primarily needed by R&D chemists and material scientists working in organic photovoltaics (OPVs), organic field-effect transistors (OFETs), and other semiconductor applications where its specific structure facilitates efficient charge transport and device performance.

Application

• Organic Photovoltaic (OPV) Materials: Serves as a crucial monomer or intermediate in the synthesis of low-bandgap conjugated polymers and small molecules for high-efficiency solar cells.
• Organic Field-Effect Transistors (OFETs): Used in the preparation of p-type or ambipolar semiconductor materials for flexible electronics and displays.
• Stille Cross-Coupling Reactions: The trimethylstannyl group makes it an excellent reagent for palladium-catalyzed cross-coupling, allowing for the precise construction of complex π-conjugated systems.
• Polymer & Small Molecule Synthesis: A fundamental building block for creating novel donor-acceptor (D-A) type materials with tailored optoelectronic properties.
• Academic & Industrial R&D: Essential for research institutions and chemical companies developing new organic electronic materials and exploring structure-property relationships.
• Chemical Vapor Deposition (CVD) Precursors: Potential use as a precursor for depositing thin films of organic semiconductors.

Basic Information

Product Name	4H-Silolo[3,2-B:4,5-B']Dithiophene, 4,4-Bis(2-Ethylhexyl)-2-(Trimethylstannyl)-
CAS No.	1228237-08-8
Molecular Formula	C31H52SSiSn
Molecular Weight	603.55 g/mol
Synonyms	2-Trimethylstannyl-4,4-bis(2-ethylhexyl)-4H-silolo[3,2-b:4,5-b']dithiophene; 4,4-Bis(2-ethylhexyl)-2-(trimethylstannyl)-4H-silolo[3,2-b:4,5-b']dithiophene; 4,4-Bis(2-ethylhexyl)-4H-silolo[3,2-b:4,5-b']dithiophene-2-yltrimethylstannane; Silolo-Dithiophene Tin Reagent; Dithienosilole Stannane Derivative; OPV/OFET Monomer; Stille Coupling Reagent
EINECS	Contact for details

Quality Control

Our high-value organometallic intermediates are produced and handled under strict inert atmosphere conditions to ensure integrity. Each batch undergoes rigorous analytical characterization, including NMR (1H, 13C) and HPLC analysis, to confirm chemical identity and purity. Certificates of Analysis (COA) detailing batch-specific results are provided and available upon request, supporting your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (argon or nitrogen) at 2-8°C or as specified on the label or COA. This compound is moisture-sensitive and easily oxidized; prolonged exposure to air, light, or moisture must be avoided to maintain stability and reactivity. Keep away from strong bases.

Specification

Item	Specification
Appearance	Yellow to orange solid or viscous liquid
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 95% (Typical 97-99%)
Tin (Sn) Content	Contact for details
Residual Solvents (GC)	Meets ICH guidelines

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