(S)-Benzyl 2-methylaziridine-1-carboxylate is primarily utilized as a key intermediate in organic synthesis, particularly in the preparation of pharmaceuticals and bioactive compounds. Its aziridine ring structure is highly reactive, making it valuable for constructing complex molecules through ring-opening reactions. This compound is often employed in the synthesis of chiral amines and amino acids, which are crucial building blocks in drug development. Additionally, it finds application in the production of peptidomimetics and other biologically active molecules, contributing to advancements in medicinal chemistry and drug discovery.