Used in organic synthesis as an intermediate for pharmaceuticals and functional materials, particularly in the development of conjugated polymers for organic electronics. Its iodine functionality allows for cross-coupling reactions, enabling the construction of complex molecular architectures. Applied in research settings to design electron-accepting units in organic semiconductors and photovoltaic devices. Also explored in the synthesis of bioactive compounds due to the thienofuran core’s presence in some pharmacologically active molecules. Additionally, it serves as a linker or surface modifier in chemical sensors to enhance detection sensitivity.