Butyl undec-10-enoate is primarily used in the fragrance and flavor industry due to its pleasant fruity and floral aroma. It is often incorporated into perfumes, colognes, and scented personal care products to add a fresh, green, and slightly sweet note. Additionally, it is utilized in flavor formulations for food and beverages, enhancing taste profiles with its mild, fruity character. Its stability and compatibility with other ingredients make it a versatile component in various cosmetic and food applications.