7-Hydroxymethyl-spiro[3.5]nonane is primarily utilized in organic synthesis as a versatile intermediate. Its unique spirocyclic structure makes it valuable for constructing complex molecules, particularly in pharmaceutical research. It is often employed in the development of novel drug candidates, where its framework can contribute to the creation of bioactive compounds with potential therapeutic properties. Additionally, it finds application in material science, where its rigid spirocyclic core can enhance the stability and performance of polymers or other advanced materials. Its hydroxyl group further allows for functionalization, enabling its use in tailored chemical reactions for specific industrial or research purposes.