16,17-Bis(decyloxy)violanthrone serves as a multifunctional dye extensively utilized across various domains. In biological experiments, dyes facilitate the observation and analysis of cell structures, tracking of biomolecules, evaluation of cell functions, differentiation of cell types, detection of biomolecules, examination of tissue pathology, and monitoring of microorganisms. Their usage spans from fundamental scientific research to a broad spectrum of clinical diagnostics. Additionally, dyes play a critical role in traditional sectors like textile dyeing and are increasingly applied in emerging areas, including functional textile processing, food pigments, and dye-sensitized solar cells.