Methyl 3-aminobutanoate is widely used in the synthesis of pharmaceuticals, particularly in the production of beta-amino acids and their derivatives. These compounds are essential building blocks for various drugs, including antibiotics and antiviral medications. It also serves as an intermediate in the creation of peptides and peptidomimetics, which are crucial in drug discovery and development. Additionally, this chemical is employed in organic synthesis to produce fine chemicals and specialty compounds used in agrochemicals and material science. Its role in facilitating complex chemical reactions makes it valuable in research and industrial applications.