Description

(4,8-Bis(5-Octylthiophen-2-Yl)Benzo[1,2-B:4,5-B']Dithiophene-2,6-Diyl)Bis(Trimethylstannane) is a high-purity, functionalized organic semiconductor building block, specifically a stannylated benzo[1,2-b:4,5-b']dithiophene (BDT) derivative. This compound is critically important as a key monomer in the synthesis of high-performance donor polymers for organic photovoltaic (OPV) devices and perovskite solar cells. It is primarily needed by R&D chemists and material scientists in the advanced materials, renewable energy, and electronics sectors for developing next-generation, efficient, and flexible solar energy solutions.

Application

• Organic Photovoltaic (OPV) Polymer Synthesis: Serves as the essential electron-donor monomer for constructing conjugated polymers like PBDTTT-based copolymers.
• Perovskite Solar Cell (PSC) Hole-Transport Materials (HTMs): Used as a precursor for developing polymeric or small-molecule HTMs to enhance device stability and efficiency.
• Organic Field-Effect Transistors (OFETs): Acts as a building block for semiconducting polymers in the active layer of thin-film transistors.
• Organic Light-Emitting Diodes (OLEDs): Employed in the synthesis of host or emissive layer materials for display and lighting technologies.
• Advanced Material Research: Utilized in academic and industrial R&D for exploring structure-property relationships in π-conjugated systems.
• Stille Polycondensation Reactions: Functions as a highly reactive stannane monomer for precise, palladium-catalyzed polymerizations.

Basic Information

Product Name	(4,8-Bis(5-Octylthiophen-2-Yl)Benzo[1,2-B:4,5-B']Dithiophene-2,6-Diyl)Bis(Trimethylstannane)
CAS No.	1434174-52-3
Molecular Formula	C46H60S4Sn2
Molecular Weight	964.84 g/mol
Synonyms	2,6-Bis(trimethylstannyl)-4,8-bis(5-octyl-2-thienyl)benzo[1,2-b:4,5-b']dithiophene; BDT(2Th-Oct)2 Sn monomer; 2,6-Bis(trimethylstannyl)-4,8-bis(5-octylthiophen-2-yl)benzo[1,2-b:4,5-b']dithiophene; Stannylated BDT derivative; PBDTTT polymer precursor; (4,8-Bis(5-octylthiophen-2-yl)benzo[1,2-b:4,5-b']dithiophene-2,6-diyl)bis(trimethylstannane); BDT-Sn monomer; OPV monomer 1434174-52-3
EINECS	Contact for details

Quality Control

Our (4,8-Bis(5-Octylthiophen-2-Yl)Benzo[1,2-B:4,5-B']Dithiophene-2,6-Diyl)Bis(Trimethylstannane) is manufactured under strict quality protocols to ensure batch-to-batch consistency and high reactivity for demanding polymerization processes. Each lot undergoes rigorous analytical testing, including NMR (1H, 13C), HPLC, and elemental analysis, to confirm identity, purity, and the absence of catalyst residues. Certificates of Analysis (COA) detailing all specifications are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) at 2-8°C or as specified on the label. This material is moisture-sensitive and easily oxidized; prolonged exposure to air, light, or moisture should be avoided to maintain reactivity and purity. Keep the container tightly sealed in a cool, dry, and well-ventilated place.

Specification

Item	Specification
Appearance	Yellow to orange solid
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 98.0% (Area %)
Tin Content	Contact for details
Residual Palladium	< 50 ppm
Solubility	Soluble in common organic solvents (THF, Toluene, Chloroform)

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