Methyl 4-methyl-2-pentenoate is primarily used in the fragrance and flavor industry. Its fruity and slightly green aroma makes it a valuable ingredient in the formulation of perfumes, colognes, and scented products. It is often incorporated to enhance the olfactory profile, adding a fresh and vibrant note. Additionally, it is utilized in the production of food flavorings, where it imparts a pleasant, fruity taste to various consumables such as beverages, candies, and baked goods. Its versatility and appealing scent profile make it a popular choice in both cosmetic and food applications.