Used as a key intermediate in the synthesis of conjugated organic semiconductors and light-emitting materials. Its extended π-conjugated structure makes it suitable for applications in organic photovoltaics (OPVs) and organic light-emitting diodes (OLEDs). The aldehyde and hydroxyl functional groups allow for further chemical modification, enabling integration into dendrimers, metal-organic frameworks (MOFs), or polymer networks for optoelectronic devices. Also employed in the development of fluorescent sensors due to its ability to chelate metal ions and exhibit signal-responsive behavior upon binding.