2-Azaspiro[3.3]heptane hydrochloride is primarily utilized in pharmaceutical research and development. It serves as a key intermediate in the synthesis of various bioactive compounds, particularly those targeting neurological disorders. Its spirocyclic structure is valuable in drug design, as it can enhance molecular rigidity and improve binding affinity to biological targets. This compound is often explored in the development of potential treatments for conditions like depression, anxiety, and other central nervous system-related diseases. Additionally, it is used in organic chemistry as a building block for creating complex molecular architectures, contributing to advancements in medicinal chemistry and drug discovery.