Used as an intermediate in the synthesis of functional dyes, particularly in the development of electrochromic and photochromic materials. Exhibits electron-accepting properties, making it suitable for applications in organic semiconductors and optoelectronic devices. Also investigated for use in dye-sensitized solar cells due to its stable redox behavior and extended π-conjugation. Its thioether groups enhance solubility and stability in organic solvents, facilitating processing in thin-film technologies.