Used as a key intermediate in the synthesis of fluorescent dyes and optical brightening agents, particularly in textile and paper industries to enhance whiteness and brightness. Also employed in the development of photostable dyes for imaging applications and as a building block in organic semiconductors for optoelectronic devices. Its conjugated structure supports electron delocalization, making it suitable for use in certain luminescent sensors and OLED materials. Additionally, it has been explored in medicinal chemistry for designing bioactive molecules due to its ability to interact with biological targets through hydrogen bonding and π-π stacking.