Bromocresol green is widely used as a pH indicator in various analytical and laboratory applications. It is particularly effective in the pH range of 3.8 to 5.4, where it transitions from yellow to blue, making it useful for titrations in this range. In microbiology, it is employed in culture media to monitor pH changes during bacterial growth. Additionally, it is utilized in biochemistry for protein detection and electrophoresis to track the progress of reactions. Its ability to provide a clear visual indication of pH shifts makes it a valuable tool in both research and industrial settings.