Used primarily as a monomer in the synthesis of biodegradable polymers, particularly in the production of polycaprolactone-type materials. Its spirocyclic structure contributes to enhanced thermal and hydrolytic stability in the resulting polymers. Commonly employed in developing environmentally friendly plastics, drug delivery systems, and tissue engineering scaffolds due to its ability to fine-tune degradation rates and mechanical properties. Also utilized in specialty copolymers to improve flexibility and processability in coatings and elastomers.