Used primarily in the synthesis of pharmaceuticals, particularly in the development of antimalarial drugs due to its quinoline structure, which is effective against Plasmodium species. It also serves as an intermediate in the production of organic compounds, including dyes and pigments, where its chlorinated and methylated groups enhance chemical reactivity and stability. In agricultural chemistry, it is utilized in the creation of fungicides and herbicides, offering protection against various plant pathogens and weeds. Additionally, its derivatives are explored in material science for applications such as organic light-emitting diodes (OLEDs) due to their electronic properties.