(2,4-Dichlorophenyl)-methanesulfonyl chloride is primarily used as a key intermediate in organic synthesis, particularly in the production of pharmaceuticals and agrochemicals. Its reactive sulfonyl chloride group makes it valuable for introducing sulfonamide functionalities into target molecules, which are often found in drugs with antibacterial, antiviral, or anti-inflammatory properties. Additionally, it is utilized in the development of herbicides and pesticides, where the dichlorophenyl moiety contributes to the biological activity of the final product. The compound is also employed in research settings for the synthesis of complex organic molecules, enabling the study of structure-activity relationships in medicinal chemistry.