Azure B eosinate is a versatile dye used extensively in biological experiments to assist researchers in observing cell structures, tracking biomolecules, evaluating cell functions, distinguishing cell types, detecting biomolecules, studying tissue pathology, and monitoring microorganisms. Its applications span basic scientific research to clinical diagnostics. In addition to these scientific uses, dyes are crucial in traditional areas like textile dyeing, as well as in emerging fields such as functional textile processing, food pigments, and dye-sensitized solar cells.