The chemical landscape is rich with compounds that, while perhaps not household names, are fundamental to scientific progress and industrial innovation. Bis(trimethylsilyl)butadiyne, also known by its CAS number 4526-07-2, is one such compound. This organosilicon molecule possesses a unique structure and set of properties that make it a valuable asset across multiple scientific and industrial domains. As a specialty chemical manufacturer, understanding and providing such compounds is at the core of our mission.

The molecular formula C10H18Si2 describes Bis(trimethylsilyl)butadiyne. Its structure features a central 1,3-butadiyne unit, a chain of four carbon atoms with two triple bonds, terminated at each end by a trimethylsilyl (Si(CH3)3) group. This arrangement results in a molecule with a molecular weight of approximately 194.42 g/mol. Physically, it is often described as a solid, typically appearing as a white to light yellow or light orange powder or crystalline solid. Its melting point usually falls in the range of 107-113 °C, with some sources noting higher melting points depending on purity and physical form. While soluble in many organic solvents, it is generally insoluble in water, which is a common characteristic for many organosilicon compounds.

Safety is always a primary concern when handling any chemical. Bis(trimethylsilyl)butadiyne is often classified as a flammable solid (GHS02) and may cause skin, eye, and respiratory irritation (GHS07). Proper handling procedures, including the use of personal protective equipment (PPE) like gloves, eye protection, and appropriate ventilation, are crucial. Storage recommendations often include keeping it at room temperature in a cool, dark, and well-ventilated place, away from ignition sources.

The applications of Bis(trimethylsilyl)butadiyne are diverse and impactful. In organic synthesis, it is a critical building block, particularly useful in carbon-carbon bond-forming reactions and as a precursor for complex organic molecules. Its role in the Negishi protocol for creating glycosylated oligo(ethynylene)s is a notable example, impacting pharmaceutical research. In materials science, its silicon content and reactive alkyne groups make it valuable for developing advanced polymers and silicon-containing materials that benefit from enhanced thermal stability and mechanical properties. It also finds use in silicon-based chemistry, contributing to the synthesis of compounds relevant to electronics and optoelectronics.

For businesses looking to incorporate this versatile compound into their processes, sourcing from a reliable manufacturer and supplier is paramount. Factors such as purity (e.g., ≥95% or ≥99% GC), packaging, and pricing are key considerations. Understanding the technical specifications and available literature for this chemical helps ensure its effective and safe application. As a specialist in advanced chemical intermediates, we provide access to such critical compounds, enabling innovation across research and industry.