Used as a key intermediate in organic synthesis, particularly in the preparation of pharmaceuticals and fine chemicals. Its aldehyde functionality allows for easy modification through reactions such as reduction, oxidation, and nucleophilic addition, making it valuable in constructing complex molecules. Commonly employed in the synthesis of natural products and bioactive compounds, especially those with oxygen-containing heterocycles. Also utilized in fragrance chemistry due to its ability to form derivatives with sensory properties. Its reactivity and structural features support its role in cyclization and condensation reactions for building six-membered oxygen rings in target molecules.