4-Bromobenzenesulfonyl Chloride CAS 98-58-8

1. 4-Bromobenzenesulfonyl chloride acts as an activating agent in the synthesis of oligonucleotides and for protecting amines as sulfonamides .
2. 4-Bromobenzenesulfonyl chloride CAS 98-58-8 serves as a key intermediate for preparing angiotensin II receptor antagonists, enzyme inhibitors, and thiochromenones .
3. 4-Bromobenzenesulfonyl chloride is also used to modify perovskite films in solar cells, enhancing crystal quality and improving power conversion efficiency .

1. Store 4-Bromobenzenesulfonyl chloride in a tightly sealed container under inert gas in a cool, dry place due to its moisture sensitivity .
2. Keep 4-Bromobenzenesulfonyl chloride CAS 98-58-8 away from strong oxidizing agents, acids, and bases, and avoid any contact with water .
3. Handle 4-Bromobenzenesulfonyl chloride using appropriate personal protective equipment including gloves, goggles, and in a well-ventilated area or fume hood .

1. Isolate the spill area, eliminate ignition sources, and contain 4-Bromobenzenesulfonyl chloride using dry inert absorbent like sand or soda ash .
2. Carefully collect the contaminated 4-Bromobenzenesulfonyl chloride into a sealed, labeled container for disposal, avoiding water contact .
3. Personnel cleaning 4-Bromobenzenesulfonyl chloride CAS 98-58-8 spills must wear full protective equipment including respirators and chemical-resistant clothing .

1. 4-Bromobenzenesulfonyl chloride is corrosive, causing severe skin burns and serious eye damage (H314) .
2. 4-Bromobenzenesulfonyl chloride CAS 98-58-8 is harmful if swallowed, inhaled, or absorbed through the skin, and its combustion releases toxic gases including hydrogen bromide and hydrogen chloride .
3. 4-Bromobenzenesulfonyl chloride reacts with water, releasing corrosive gases, and is classified for transport as a corrosive solid (UN 3261, Packing Group II) .