For research and development chemists, a deep understanding of a chemical's properties is fundamental to successful synthesis and application. Benzenesulfonyl Chloride (CAS 98-09-9) is a compound whose characteristic reactivity makes it a highly valued tool in organic chemistry. As a leading supplier of fine chemical intermediates, we aim to equip our clients with the knowledge they need to leverage this compound effectively.

Benzenesulfonyl Chloride, often described as a light yellow transparent liquid with a pungent odor, exhibits key chemical properties that dictate its utility. Its molecular formula is C6H5SO2Cl, and it has a molar mass of 176.62 g/mol. A critical aspect of its reactivity is its susceptibility to nucleophilic attack at the sulfur atom. This allows it to readily form sulfonamides upon reaction with amines and sulfonate esters when treated with alcohols. These reactions are foundational for creating a wide array of complex organic molecules that find applications in pharmaceuticals, polymers, and specialty materials.

Its solubility profile is also noteworthy: while insoluble in water, Benzenesulfonyl Chloride dissolves well in common organic solvents like ethanol and ether, facilitating its use in various reaction media. However, its reactivity with water, especially at elevated temperatures, means that anhydrous conditions are often preferred to prevent decomposition into corrosive hydrochloric acid and benzenesulfonic acid. This necessitates careful handling and storage, underscoring the importance of sourcing from a supplier that provides comprehensive safety and handling guidelines.

For chemists looking to buy Benzenesulfonyl Chloride, understanding these properties is crucial for experimental design, reaction optimization, and ensuring safety. Whether you are developing new drug candidates, novel materials, or optimizing existing synthetic routes, a reliable supply of high-quality Benzenesulfonyl Chloride from a trusted manufacturer ensures predictable results. We are committed to being that trusted partner, offering not just the product but also the technical understanding to support your chemical synthesis endeavors.