For B2B procurement professionals and R&D scientists in the chemical and pharmaceutical industries, identifying and sourcing critical raw materials is a core responsibility. Chlorotriethylsilane (CAS 994-30-9) is one such compound, valued for its versatile applications in organic synthesis, particularly as a silylating agent and Lewis acid catalyst. This guide aims to equip you with the knowledge needed to effectively source Chlorotriethylsilane, focusing on its key properties, applications, and how to secure a reliable supply from manufacturers and distributors.

Understanding the specifications of Chlorotriethylsilane is the first step in any procurement process. The compound, with the CAS number 994-30-9, is chemically known as Triethylchlorosilane or Triethylsilyl Chloride. Its molecular formula is C6H15ClSi, and it typically presents as a clear, colorless to slightly yellow liquid. Key properties include a boiling point of around 142-144°C and a density of approximately 0.898 g/mL. Crucially, Chlorotriethylsilane is moisture-sensitive, meaning it must be handled and stored under anhydrous conditions to maintain its reactivity and purity. This characteristic is vital for any supplier to communicate and adhere to.

The applications of Chlorotriethylsilane are diverse and impactful:

  • Silylation Reactions: As a potent silylating agent, it reacts with hydroxyl, amino, and thiol groups, forming stable silyl ethers, silyl amines, and silyl thioethers. This protection is indispensable in multi-step organic syntheses, preventing undesired side reactions and improving overall yields.
  • Lewis Acid Catalysis: Its catalytic properties make it useful in various organic transformations, accelerating reaction rates and improving selectivity in processes such as acylations and rearrangements.
  • Silicone Chemistry: It serves as a key intermediate and end-capping agent in the production of ethyl silicone oils and rubbers, influencing their physical properties and stability.
  • Pharmaceutical Synthesis: In the pharmaceutical industry, it can be used as a building block or derivatizing agent in the synthesis of active pharmaceutical ingredients (APIs) and complex organic molecules.

When you are looking to purchase Chlorotriethylsilane, focusing on manufacturers that guarantee high purity, often specified as ≥99% or higher, is essential for reliable results. Suppliers in China are a significant source for this chemical, offering competitive pricing for bulk orders. It is prudent to inquire about their quality assurance systems, certifications (like ISO), and their capacity to meet your specific volume requirements. Always request a price quotation that clearly outlines the product specifications, packaging, and delivery terms.

To facilitate your procurement, consider these keywords when searching for suppliers: 'buy Chlorotriethylsilane,' 'Chlorotriethylsilane manufacturer,' 'CAS 994-30-9 supplier,' and 'Triethylsilyl Chloride price.' Engaging with vendors who provide detailed technical data sheets (TDS) and Safety Data Sheets (SDS) is also a best practice. For critical applications, such as in pharmaceutical synthesis, ensuring the material meets relevant standards like USP, BP, or EP is imperative. Partnering with a reputable chemical company means not just acquiring a product, but also securing a reliable supply chain and expert support.

In conclusion, Chlorotriethylsilane (CAS 994-30-9) is a vital chemical intermediate with broad applications. By understanding its properties and focusing your search on quality-assured manufacturers and suppliers, you can effectively procure this essential compound for your research and production needs. We encourage you to contact potential suppliers to discuss your specific requirements and obtain quotations to secure your supply.