Description

(4,8-Bis(7-(2-Ethylhexyl)-2,3-Dihydrothieno[3,4-B][1,4]Dioxin-5-Yl)Benzo[1,2-B:4,5-B']Dithiophene-2,6-Diyl)Bis(Trimethylstannane) is a high-purity, functionalized organic semiconductor monomer, also known as a stannylated donor-acceptor-donor (D-A-D) type building block. This compound is critical for the synthesis of advanced low-bandgap conjugated polymers used in next-generation organic photovoltaic (OPV) devices and organic field-effect transistors (OFETs). It is primarily utilized by R&D chemists and material scientists in the organic electronics, photovoltaics, and advanced materials sectors seeking to develop high-efficiency, solution-processable electronic materials.

Application

• Key Monomer for Polymer Solar Cells (PSCs): Serves as a crucial stannylated comonomer in Stille polycondensation reactions to synthesize high-performance donor polymers for bulk heterojunction solar cells.
• Organic Photovoltaic (OPV) Research: Enables the development of novel low-bandgap copolymers that absorb a broader spectrum of sunlight, enhancing power conversion efficiency.
• Organic Electronic Materials: Used in the fabrication of active layers for organic field-effect transistors (OFETs) and other thin-film electronic devices.
• Advanced Material Synthesis: Acts as a specialized building block for creating conjugated polymers and small molecules with tailored optoelectronic properties.
• R&D and Process Development: Essential for academic and industrial research laboratories focused on novel organic semiconductor design and synthesis.
• Chemical Intermediate Production: Functions as a high-value intermediate for custom synthesis services targeting the electronics materials market.

Basic Information

Product Name	(4,8-Bis(7-(2-Ethylhexyl)-2,3-Dihydrothieno[3,4-B][1,4]Dioxin-5-Yl)Benzo[1,2-B:4,5-B']Dithiophene-2,6-Diyl)Bis(Trimethylstannane)
CAS No.	1817608-76-6
Molecular Formula	C52H66O4S4Sn2
Molecular Weight	1124.98 g/mol
Synonyms	BDTT-Sn; 2,6-Bis(trimethylstannyl)-4,8-bis(5-(2-ethylhexyl)-4H-thieno[3,4-b][1,4]dioxin-7-yl)benzo[1,2-b:4,5-b']dithiophene; BDT(2EH-Th)2 distannane monomer; Stannylated BDTT derivative; OPV monomer 1817608-76-6; Donor monomer for Stille polymerization; Trimethylstannyl-functionalized benzo[1,2-b:4,5-b']dithiophene derivative
EINECS	Contact for details

Quality Control

Every batch of this advanced electronic chemical is produced and analyzed under strict inert atmosphere conditions to prevent oxidation and ensure consistent reactivity. Our quality assurance includes comprehensive characterization via NMR (¹H, ¹³C), HPLC, and elemental analysis to verify structural integrity, high purity, and the absence of deleterious impurities like palladium or other metallic catalysts. A detailed Certificate of Analysis (COA) documenting all specifications is provided with each shipment to support your rigorous R&D and production standards.

Storage

Preserve in a tightly closed container, protected from light. For long-term storage, keep the container under an inert atmosphere (argon or nitrogen) in a freezer at -20°C to -10°C. This compound is moisture-sensitive and easily oxidized; allow the sealed container to equilibrate to room temperature before opening to prevent condensation. Store in a cool, dry, well-ventilated area away from incompatible materials.

Specification

Item	Specification
Appearance	Yellow to orange solid or powder
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 98.0% (Area %)
Assay (Elemental Analysis)	C, H, S, Sn within ±0.4% of theoretical
Residual Solvents (GC)	≤ 0.5% total
Residual Palladium (ICP-MS)	≤ 50 ppm
Water Content (KF)	≤ 0.2%

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