6-Methylquinolin-4-ol is primarily used in the field of organic synthesis as a key intermediate for the production of various pharmaceuticals. It plays a crucial role in the development of compounds with potential antimicrobial and anticancer properties. Additionally, it is utilized in the synthesis of quinoline derivatives, which are important in the creation of dyes and pigments. Its applications extend to research laboratories where it serves as a building block for studying chemical reactions and developing new therapeutic agents.