Trimethylsulfonium Bromide, identified by its CAS number 3084-53-5, is a chemical compound that holds significant importance in various industrial and research sectors, particularly in organic synthesis and pharmaceutical manufacturing. As a quaternary sulfonium salt, its chemical structure and properties make it a valuable reagent. For professionals seeking to buy this compound, understanding its fundamental characteristics is key to successful procurement and application.

The chemical formula for Trimethylsulfonium Bromide is C3H9BrS, with a molecular weight of approximately 157.07 g/mol. It typically presents as a white to light yellow crystalline powder, a physical form that aids in its handling and dissolution in various solvents. A notable physical property is its melting point, which is reported to be around 203°C. This relatively high melting point indicates a stable crystalline structure. Its solubility, particularly in polar solvents, further enhances its utility in aqueous or polar organic reaction systems.

Chemically, Trimethylsulfonium Bromide acts primarily as a source of the trimethylsulfonium cation, ([CH3]3S+). This cation is instrumental in two key types of reactions: methylation and phase-transfer catalysis. As a methylating agent, it efficiently transfers a methyl group to nucleophilic centers in other molecules. This is a fundamental transformation in organic chemistry, essential for building carbon skeletons and modifying functional groups in the synthesis of complex compounds, including many APIs. For instance, when researchers require a reliable way to methylate a substrate, they will often look to purchase high-quality Trimethylsulfonium Bromide from a reputable supplier.

Furthermore, its role as a phase-transfer catalyst is equally critical. In heterogeneous reaction systems, where reactants reside in different phases (e.g., aqueous and organic), Trimethylsulfonium Bromide can facilitate the transfer of reactive ions across the interface. This significantly accelerates reaction rates and can improve selectivity, leading to higher yields and purer products. This makes it an attractive choice for chemical manufacturers looking to optimize their production processes and reduce waste. The availability from Chinese manufacturers often provides a competitive price advantage for bulk orders.

The primary application for Trimethylsulfonium Bromide lies in its function as a pharmaceutical intermediate and a reagent in general organic synthesis. It is used in the production of various active pharmaceutical ingredients and in the synthesis of other fine chemicals. Its consistent purity, typically at 98%, ensures that it meets the stringent quality demands of these industries. When sourcing this chemical, inquiring about its specific grade and requesting a detailed CoA is always recommended.

For businesses and research institutions, identifying a reliable manufacturer of Trimethylsulfonium Bromide (CAS 3084-53-5) is paramount. China offers a robust supply chain for this compound. Engaging with a knowledgeable supplier who can provide technical data, competitive pricing, and dependable delivery is crucial for sustained operations. Obtaining a quote and considering sample orders are essential steps in establishing a strong supply partnership.