Description:o-Bromobenzenesulfonyl chloride, with the CAS number 2905-25-1, is an organic compound characterized by the presence of a bromobenzene ring and a sulfonyl chloride functional group. It typically appears as a colorless to pale yellow liquid or solid, depending on its purity and storage conditions. This compound is known for its reactivity, particularly due to the sulfonyl chloride group, which can participate in nucleophilic substitution reactions. It is often used as a reagent in organic synthesis, particularly in the preparation of sulfonamides and other sulfonyl derivatives. The presence of the bromine atom enhances its electrophilic character, making it a useful intermediate in various chemical transformations. o-Bromobenzenesulfonyl chloride is sensitive to moisture and should be handled with care, as it can release hydrochloric acid upon hydrolysis. Proper safety precautions, including the use of personal protective equipment, are essential when working with this compound due to its corrosive nature and potential health hazards.
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