Description

(4,8-Bis(5-((2-Ethylhexyl)Thio)Thieno[3,2-B]Thiophen-2-Yl)Benzo[1,2-B:4,5-B']Dithiophene-2,6-Diyl)Bis(Trimethylstannane) is a high-purity, functionalized organic semiconductor monomer, specifically designed as a critical building block for advanced conjugated polymers. This compound matters because it enables the precise synthesis of donor-acceptor (D-A) copolymers with tailored electronic properties, essential for next-generation optoelectronic devices. It is primarily needed by R&D chemists and material scientists in the organic electronics, photovoltaics, and display technology sectors for developing high-performance organic thin-film transistors (OTFTs) and polymer solar cells (PSCs).

Application

• Organic Photovoltaic (OPV) Materials: Serves as a key donor unit in the synthesis of low-bandgap conjugated polymers for bulk heterojunction solar cells.
• Organic Thin-Film Transistors (OTFTs): Used to create semiconducting polymers with high charge carrier mobility for flexible electronic circuits and displays.
• Perovskite Solar Cell (PSC) Hole-Transport Materials (HTMs): A precursor for developing polymeric HTMs to enhance device stability and efficiency.
• Organic Light-Emitting Diodes (OLEDs): Employed in the synthesis of emissive or charge-transport layers for display and lighting applications.
• Chemical Research & Development: A fundamental monomer for exploring new structure-property relationships in π-conjugated systems and D-A polymers.
• Printed Electronics: Enables the formulation of solution-processable semiconductor inks for roll-to-roll manufacturing.

Basic Information

Item	Detail
Product Name	(4,8-Bis(5-((2-Ethylhexyl)Thio)Thieno[3,2-B]Thiophen-2-Yl)Benzo[1,2-B:4,5-B']Dithiophene-2,6-Diyl)Bis(Trimethylstannane)
CAS No.	1691204-24-6
Molecular Formula	C52H66S8Sn2
Molecular Weight	1184.06 g/mol
Synonyms	BDTT-Sn monomer; 2,6-Bis(trimethylstannyl)-4,8-bis(5-((2-ethylhexyl)thio)thieno[3,2-b]thiophen-2-yl)benzo[1,2-b:4,5-b']dithiophene; BDT(2EH-ThTT)-Sn; Stannylated BDTT derivative; Donor monomer for D-A polymers; Thieno[3,2-b]thiophene and Benzodithiophene based stannane; Organic semiconductor precursor
EINECS	Contact for details

Quality Control

Our high-purity organic electronic chemicals are synthesized and purified under controlled conditions to ensure batch-to-batch consistency and optimal performance in sensitive polymerization reactions. Each lot undergoes rigorous analytical characterization, including NMR, HPLC, and elemental analysis, to confirm chemical identity and purity. Certificates of Analysis (COA) detailing all specifications are provided with every shipment to support your quality assurance and R&D documentation.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C) under an inert atmosphere (argon or nitrogen) to prevent oxidation and hydrolysis of the stannyl groups. Keep the container securely sealed when not in use.

Specification

Item	Specification
Appearance	Yellow to orange solid
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Tin Content	Theoretical: ~20.0%
Residual Solvents (GC)	Meet ICH guidelines

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