4,8-Dichloroquinoline is primarily used as a key intermediate in the synthesis of various pharmaceutical compounds. It plays a significant role in the development of antimalarial drugs, leveraging its quinoline backbone, which is known for its efficacy in targeting malaria parasites. Additionally, this compound is utilized in the production of agrochemicals, particularly in the formulation of pesticides and herbicides, due to its ability to disrupt the growth of harmful organisms. Its chemical structure also makes it a valuable building block in organic synthesis, contributing to the creation of complex molecules for research and industrial applications.