Used as a versatile intermediate in organic synthesis for the preparation of pharmaceuticals and agrochemicals featuring sulfone functionalities. It facilitates the introduction of the 5-(methylsulfonyl)pentyl chain into target molecules via nucleophilic substitution of the chloride, acting as an alkylating agent. The sulfone group enhances electron-withdrawing effects, promoting reactivity for subsequent transformations. This compound is ideal for constructing complex bioactive molecules in multi-step routes, enabling selective reactions under mild conditions due to its chloro and sulfonyl moieties.