Benzenesulfonyl Chloride (BSC), identified by CAS number 98-09-9, is a widely used chemical intermediate. For R&D scientists, formulation chemists, and plant operators, a thorough understanding of its properties, safety protocols, and handling procedures is fundamental to its effective and safe utilization. This article provides essential information for those working with this reactive compound.

Chemically, Benzenesulfonyl Chloride is a colorless to light yellow transparent liquid with a high purity, often exceeding 99.5%. Its molecular formula is C6H5ClO2S, and it possesses a distinct reactivity due to the presence of the sulfonyl chloride group. This group makes it an excellent sulfonating agent, capable of reacting with alcohols to form sulfonate esters and with amines to form sulfonamides. It's important to note its instability in the presence of water, where it can hydrolyze, releasing corrosive fumes like hydrogen chloride.

Safety is a paramount concern when handling Benzenesulfonyl Chloride. As indicated by its classification as a hazardous material, appropriate personal protective equipment (PPE) must be worn at all times. This includes chemical-resistant gloves, safety goggles or a face shield, and protective clothing. Work should ideally be conducted in a well-ventilated area, preferably a fume hood, to prevent inhalation of vapors. In case of skin or eye contact, immediate flushing with copious amounts of water is necessary, followed by medical attention.

Proper storage and handling are critical to maintaining the integrity of Benzenesulfonyl Chloride and ensuring safety. Containers should be kept tightly closed in a cool, dry, and well-ventilated place, away from incompatible materials such as water, strong oxidizing agents, and strong bases. Understanding these properties and adhering to safety guidelines are crucial for any professional seeking to buy or use Benzenesulfonyl Chloride in their research or manufacturing processes. As a dedicated supplier, we emphasize the importance of safe handling practices for all our chemical products.