Dimethyl 3-methylpent-2-enedioate is primarily used in organic synthesis as a versatile intermediate for the production of various chemical compounds. It serves as a key building block in the synthesis of fine chemicals, pharmaceuticals, and agrochemicals. Its structure allows for participation in reactions such as Michael additions, cyclizations, and esterifications, making it valuable for creating complex molecules. Additionally, it is utilized in the development of fragrances and flavoring agents due to its ability to contribute to the formation of specific aromatic compounds. Its application extends to research and development in material science, where it aids in the synthesis of polymers and specialty materials with tailored properties.