Used primarily as an intermediate in organic synthesis, especially in the pharmaceutical and agrochemical industries. Its reactive chloroethyl group allows for easy alkylation and ring-functionalization, making it valuable in constructing complex molecules. Commonly employed in the development of bioactive compounds, including potential drug candidates targeting neurological and cardiovascular conditions. Also utilized in the synthesis of specialty polymers and functionalized heterocyclic compounds due to the stability and electronic properties of the thiophene ring.