Used as a pH indicator in various laboratory applications, particularly in microbiology and biochemistry. It helps in determining the acidity or alkalinity of solutions, with a color change from yellow (acidic) to purple (basic) around pH 5.2 to 6.8. Commonly employed in cell culture media to monitor pH changes during microbial growth. Also utilized in titrations and as a visual aid in educational experiments to demonstrate pH shifts. Its stability and distinct color transition make it a reliable tool for quick and accurate pH assessment in research and industrial settings.