Beta-Naphthol violet is a multifunctional dye that serves as an important tool in biological experiments, aiding researchers in observing and analyzing cell structures, tracking biomolecules, evaluating cell functions, distinguishing cell types, detecting biomolecules, studying tissue pathology, and monitoring microorganisms. Its applications range from basic scientific research to clinical diagnostics. This dye is also widely used in traditional fields such as textile dyeing and emerging fields like functional textile processing, food pigments, and [dye-sensitized solar cells].