Azacyclododecan-2-one is primarily used in the field of organic synthesis as a key intermediate in the production of various pharmaceuticals and fine chemicals. Its structure makes it a valuable building block for creating complex molecules, particularly in the development of drugs that target specific biological pathways. This compound is often utilized in the synthesis of macrocyclic compounds, which are important in drug discovery due to their ability to bind tightly to biological targets, enhancing therapeutic efficacy. Additionally, it finds application in the preparation of specialty chemicals used in research and industrial processes, where its unique ring structure contributes to the development of novel materials and catalysts.