Used primarily as an intermediate in organic synthesis, especially in the preparation of pharmaceuticals and biologically active compounds. The nitroso group allows for selective transformations, making it valuable in the development of nitrogen-containing heterocycles. It is also employed in the synthesis of certain enzyme inhibitors and receptor antagonists due to its structural similarity to natural alkaloids. Its derivatives are explored in medicinal chemistry for potential applications in treating neurological disorders and cancer. Additionally, it serves as a building block in the design of peptidomimetics, where it mimics amino acid structures to enhance metabolic stability and bioavailability.