4-Chlorophenetole is primarily used as an intermediate in the synthesis of various organic compounds. It plays a significant role in the production of pharmaceuticals, where it is utilized to create active ingredients for medications. Additionally, it is employed in the manufacturing of agrochemicals, helping to develop pesticides and herbicides that protect crops from pests and weeds. In the field of dyes and pigments, 4-Chlorophenetole is used to produce colorants for textiles, plastics, and other materials. Its application extends to research and development, where it serves as a reagent in chemical reactions to study and create new compounds with potential industrial or commercial use.