4-Chlorobenzylideneacetone is primarily used in organic synthesis as an intermediate for the production of various chemical compounds. It is often employed in the synthesis of pharmaceuticals, agrochemicals, and other fine chemicals due to its reactive carbonyl and aromatic groups. Additionally, it serves as a building block in the preparation of complex organic molecules, including those with potential biological activity. In research, it is utilized in studies involving cross-coupling reactions and as a precursor for the development of new materials. Its applications also extend to the field of dyes and pigments, where it contributes to the synthesis of colorants.