Ethyl 4-(prop-2-ynylamino)benzoate is primarily used in organic synthesis as an intermediate for the preparation of more complex chemical compounds. It is often employed in the development of pharmaceuticals, particularly in the synthesis of molecules with potential biological activity. The compound's structure, featuring both an ester and an alkyne group, makes it versatile for various chemical reactions, including click chemistry, which is widely used in drug discovery and material science. Additionally, it can serve as a building block in the creation of polymers or coatings, where its functional groups can be modified to achieve desired properties. Its role in research and development highlights its importance in advancing innovative chemical and medicinal applications.