Lanasol yellow 4G serves as a multifunctional dye. Crucial in biological experiments, dyes assist researchers in observing and analyzing cell structures, tracking biomolecules, evaluating cell functions, distinguishing cell types, detecting biomolecules, studying tissue pathology, and monitoring microorganisms. Their applications extend from fundamental scientific research to clinical diagnostics. Additionally, dyes are extensively employed in traditional areas like textile dyeing and in novel fields such as functional textile processing, food pigments, and dye-sensitized solar cells.