7-Oxa-2-azaspiro[3.5]nonane oxalate(2:1) is primarily utilized in the field of organic synthesis and pharmaceutical research. It serves as a key intermediate in the development of complex molecules, particularly those with spirocyclic structures, which are often found in bioactive compounds. Its unique spirocyclic framework makes it valuable for constructing novel drug candidates, especially in the design of central nervous system (CNS) therapeutics and enzyme inhibitors. Additionally, it is employed in the study of chemical reactions involving oxalate salts, contributing to advancements in materials science and catalysis.