Used primarily as a chemical intermediate in organic synthesis, particularly in the preparation of pharmaceuticals and agrochemicals. It serves as an alkylating agent in the development of more complex molecules due to its reactive chloride and carbonyl functionalities. Commonly employed in the synthesis of heterocyclic compounds and as a building block in medicinal chemistry for introducing the 4-tert-butylphenyl group. Its structure allows for selective reactions, making it valuable in research settings for designing bioactive compounds.