N-Propylbutylamine is primarily used in organic synthesis as an intermediate for producing various chemical compounds. It serves as a building block in the creation of pharmaceuticals, agrochemicals, and specialty chemicals. Its role in synthesizing complex molecules makes it valuable in research and industrial applications. Additionally, it can be utilized in the development of surfactants and corrosion inhibitors due to its amine functionality. Its properties also make it suitable for use in the formulation of certain polymers and coatings.