Ethyl 5-chlorooxazole-4-carboxylate is primarily used in organic synthesis as a versatile intermediate for the development of more complex chemical compounds. Its structure allows it to participate in various reactions, making it valuable in the synthesis of pharmaceuticals, agrochemicals, and other fine chemicals. For instance, it can be utilized in the preparation of heterocyclic compounds, which are often key components in drug molecules due to their biological activity. Additionally, its reactivity enables it to serve as a building block in the creation of novel materials or specialty chemicals for research and industrial applications.