Used primarily as an intermediate in organic synthesis, especially in the pharmaceutical industry. The benzoyl chloride functionality reacts readily with nucleophiles such as amines and alcohols to form amide or ester derivatives, while the pre-existing piperidin-1-ylsulfonyl (sulfonamide) group contributes to the pharmacophore. This structure is valuable for constructing bioactive molecules, particularly in the development of medicinal compounds incorporating sulfonamide and amide motifs. Its high reactivity enables efficient derivatization in multi-step syntheses, such as creating enzyme inhibitors or receptor ligands. Handle with care due to moisture sensitivity and potential for irritation.