Description

Stannane, 1,1'-(4,5-Dimethoxybenzo[2,1-B:3,4-B']Dithiophene-2,7-Diyl)Bis[1,1,1-Tributyl- is a high-purity organotin compound featuring a symmetric, conjugated dithiophene core functionalized with two tributylstannyl groups — engineered for precision cross-coupling in advanced organic electronic synthesis. This material delivers exceptional reactivity and selectivity in Stille coupling reactions, enabling the fabrication of high-mobility semiconducting polymers and small-molecule acceptors for next-generation optoelectronic devices. It is critically utilized by R&D chemists and process engineers in OLED display development, organic photovoltaic (OPV) cell manufacturing, and high-performance transistor material synthesis.

Application

• Stille cross-coupling partner for synthesizing low-bandgap conjugated polymers used in organic solar cells (OSCs)
• Key building block in the preparation of donor–acceptor-type small molecules for solution-processed OLED emitters
• Monomer for fabricating high-crystallinity semiconducting thin films in organic field-effect transistors (OFETs)
• Chemical intermediate in the development of near-infrared (NIR) absorbing materials for photodetectors and bioimaging probes
• Research-grade reagent for structure–property relationship studies in fused heteroaromatic tin chemistry
• Functionalization agent for surface-grafted organic electronic layers on flexible substrates

Basic Information

Product Name	Stannane, 1,1'-(4,5-Dimethoxybenzo[2,1-B:3,4-B']Dithiophene-2,7-Diyl)Bis[1,1,1-Tributyl-
CAS No.	1609590-14-8
Molecular Formula	C44H62O2S2Sn2
Molecular Weight	922.51 g/mol
Synonyms	BDT-2Sn; 4,5-Dimethoxybenzo[2,1-b:3,4-b′]dithiophene-2,7-diyldibutylstannane; 2,7-Bis(tributylstannyl)-4,5-dimethoxybenzo[2,1-b:3,4-b′]dithiophene; BDT(SnBu3)2; DM-BDT-Sn; Tributyl[4,5-dimethoxybenzo[2,1-b:3,4-b′]dithiophen-2-yl]stannane; Tributyl[4,5-dimethoxybenzo[2,1-b:3,4-b′]dithiophen-7-yl]stannane; CAS 1609590-14-8
EINECS	Contact for details

Quality Control

Our products undergo rigorous quality testing to ensure compliance with industry standards. Each batch is verified for identity, purity, and structural integrity using orthogonal analytical methods including 1H NMR, HPLC, and mass spectrometry. Certificates of Analysis (COA) are available upon request and include full chromatographic profiles, residual solvent data, and heavy metal screening per ICH Q3D guidelines. The material meets specifications for use in research and development under ISO 9001-certified manufacturing protocols.

Storage

Preserve in a tightly closed container, protected from light. Store under inert atmosphere (argon or nitrogen) at 2–8 °C. Avoid exposure to moisture, strong alkalis, and oxidizing agents. Handle in a well-ventilated fume hood using appropriate personal protective equipment.

Specification

Item	Specification
Appearance	Pale yellow to amber crystalline solid or viscous oil
Assay (by HPLC)	≥ 98.5%
Identification (IR)	Conforms to reference spectrum
Identification (1H NMR)	Conforms to reference spectrum (CDCl3)
Residual Solvents (GC)	Meets ICH Q3C limits
Heavy Metals (by ICP-MS)	≤ 10 ppm total
Water Content (KF)	≤ 0.1% w/w

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