Used as an intermediate in organic synthesis, particularly in the preparation of pharmaceuticals and agrochemicals. It participates in condensation reactions to form heterocyclic compounds, including pyridines and pyrimidines, which are common scaffolds in drug molecules. Its ester groups allow for further functionalization, making it valuable in building complex organic structures. Also employed in the synthesis of dyes and specialty polymers due to its reactivity and ability to introduce ethoxy and ester functionalities.