Acid red 260 is a versatile dye utilized in numerous biological and industrial applications. It plays a crucial role in scientific research by assisting 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 extend from basic research to clinical diagnostics. Additionally, dyes like Acid red 260 are employed in traditional areas such as textile dyeing and in emerging sectors, including functional textile processing, food pigments, and dye-sensitized solar cells.