2-Butylcyclopentanone is primarily used in the fragrance and flavor industry due to its unique aromatic properties. It contributes to the creation of complex scents and flavors, often adding a fruity or floral note to perfumes, cosmetics, and food products. Additionally, it serves as an intermediate in organic synthesis, particularly in the production of pharmaceuticals and other specialty chemicals. Its structure allows it to be a versatile building block for more complex molecules in various chemical processes.