Bromocresol purple is widely used as a pH indicator in various laboratory and industrial applications. It is particularly effective in the pH range of 5.2 to 6.8, where it transitions from yellow to purple. This property makes it valuable in titrations to determine the endpoint of acid-base reactions, especially in biochemical and microbiological studies. In microbiology, it is often incorporated into culture media to monitor pH changes during bacterial growth. Additionally, it is utilized in water quality testing to assess the acidity or alkalinity of water samples. Its ability to provide a clear visual indication of pH changes ensures its continued use in scientific research and quality control processes.