Description:4-Ethynylbenzenesulfonamide, with the CAS number 1788-08-5, is an organic compound characterized by the presence of both an ethynyl group and a sulfonamide functional group. Its molecular structure features a benzene ring substituted with an ethynyl group at the para position relative to the sulfonamide group. This compound is typically a white to off-white solid and is known for its potential applications in medicinal chemistry, particularly as a building block in the synthesis of various pharmaceuticals. The sulfonamide moiety contributes to its solubility in polar solvents, while the ethynyl group can participate in various chemical reactions, including cross-coupling reactions. 4-Ethynylbenzenesulfonamide may exhibit biological activity, making it of interest in drug development and research. As with many sulfonamides, it may also possess antibacterial properties, although specific biological activities can vary based on structural modifications and the presence of other functional groups. Proper handling and safety measures should be observed due to potential toxicity associated with sulfonamide compounds.
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