Used primarily as a key intermediate in the synthesis of conductive polymers, especially poly(3,4-ethylenedioxythiophene) (PEDOT) derivatives. Its structure enables functionalization for electronic materials used in organic semiconductors, OLEDs, and organic photovoltaics. Commonly employed in the development of organic thin-film transistors (OTFTs) due to its ability to enhance charge carrier mobility. Also explored in biosensors and electrochromic devices thanks to its stable electrochemical properties and ease of polymerization. Frequently modified for use in antistatic coatings and transparent conductive films in flexible electronics.