Trans-Methyl 4-methylpyrrolidine-3-carboxylate is primarily used as an intermediate in the synthesis of various pharmaceuticals and bioactive compounds. Its structure makes it valuable for constructing more complex molecules, particularly in the development of drugs targeting the central nervous system. It is also employed in organic chemistry research for the preparation of pyrrolidine derivatives, which are often explored for their potential therapeutic properties. Additionally, it serves as a building block in the production of agrochemicals and fine chemicals, contributing to the development of new products in these fields.