Used primarily as a key intermediate in the synthesis of vitamin A and related retinoids. It serves as a building block in the production of carotenoids, which are important in nutritional supplements, cosmetics, and pharmaceuticals. Its conjugated aldehyde structure makes it valuable in organic synthesis for creating complex molecules with specific stereochemistry. Also utilized in fragrance formulations due to its floral, woody odor profile, particularly in perfumery for enhancing rose and citrus notes.