CytoRed (7-(Isobutyloxycarbonyloxy)-3H-phenoxazin-3-on) serves as a multifunctional dye with broad applications in various fields. This compound is critical in biological experiments where it aids in observing and analyzing cell structures, tracking biomolecules, evaluating cell functions, distinguishing cell types, and detecting biomolecules. Additionally, it plays a role in studying tissue pathology and monitoring microorganisms. Beyond its scientific use, CytoRed is employed in traditional textile dyeing, functional textile processing, food pigments, and dye-sensitized solar cells, demonstrating its versatility across basic research, clinical diagnostics, and industrial applications.