Trans-2-Dodecenal is widely used in the flavor and fragrance industry due to its strong, citrus-like aroma. It is commonly incorporated into perfumes, colognes, and scented products to impart a fresh, zesty note. In the food industry, it serves as a flavoring agent, enhancing the taste of various products such as beverages, candies, and baked goods with its citrusy profile. Additionally, it is utilized in household cleaning products and air fresheners to provide a pleasant, refreshing scent. Its versatility and appealing aroma make it a valuable component in both consumer and industrial applications.