Used as a key intermediate in the synthesis of functional organic materials, particularly in the development of fluorescent dyes and optoelectronic compounds. Its strong electron-withdrawing nature makes it suitable for constructing charge-transfer complexes and nonlinear optical materials. Also employed in the preparation of anthraquinone-based derivatives for applications in photoredox catalysis and organic semiconductors. Additionally, it serves as a building block in the design of sensors and molecular probes due to its distinct chromophoric properties.