Cresol Red is widely used as a pH indicator in various laboratory and industrial applications. It is particularly useful in biological and chemical research to monitor pH changes in solutions, typically transitioning from yellow to red in the pH range of 7.2 to 8.8. This makes it valuable in cell culture studies, enzyme assays, and biochemical experiments where precise pH control is critical. Additionally, Cresol Red is employed in electrophoresis as a tracking dye to monitor the progress of DNA or protein migration. Its ability to change color with pH also finds applications in environmental testing, such as assessing the pH of water samples in ecological studies.