Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of nonsteroidal anti-inflammatory drugs (NSAIDs) and other bioactive molecules. Its structure allows for easy functionalization, making it valuable in medicinal chemistry for building complex heterocyclic compounds. Also employed in the preparation of agrochemicals and organic semiconductors due to the electron-rich nature of the thiophene ring. Commonly utilized in research laboratories for constructing novel thienyl-based derivatives with potential biological activity.