Spiro[4.5]decan-7-one is used in organic synthesis as a key intermediate for creating complex molecular structures. Its spirocyclic framework is valuable in the development of pharmaceuticals, particularly in designing compounds with potential biological activity. It is also employed in the synthesis of fragrances and flavors, where its unique structure contributes to the creation of novel aromatic compounds. Additionally, its application extends to material science, where it is utilized in the production of specialized polymers and resins with enhanced properties.