3-Methylpyridine-2,6-diamine is primarily used in the synthesis of various pharmaceutical compounds. It serves as a key intermediate in the production of drugs that target neurological disorders, particularly those related to dopamine regulation. Additionally, it is utilized in the development of dyes and pigments due to its ability to form stable complexes with metal ions, enhancing colorfastness and durability. In organic chemistry research, it is employed as a building block for constructing more complex molecules, aiding in the study of reaction mechanisms and molecular interactions. Its applications also extend to the field of agrochemicals, where it contributes to the formulation of pesticides and herbicides, improving their efficacy and selectivity.