Used as a staining agent in biological and histological studies to identify and differentiate cellular components, particularly in plant and animal tissues. It is also employed in analytical chemistry as a colorimetric indicator for the detection of magnesium ions in various samples. In industrial applications, it serves as a dye for textiles, paper, and plastics, providing a bright yellow hue. Additionally, it is utilized in research laboratories for studying the properties of colloids and their interactions, as well as in other scientific analyses for precise identification and quantification of substances.