Bromophenol red is widely used as a pH indicator in various laboratory applications. It is particularly effective in the pH range of 5.2 to 6.8, where it transitions from yellow to red. This property makes it valuable in titrations and pH monitoring experiments, especially in biological and chemical research. Additionally, it is employed in cell culture media to visually assess pH changes, ensuring optimal conditions for cell growth. In microbiology, it helps in differentiating bacterial species based on their metabolic activities. Its color-changing ability also finds use in educational demonstrations to teach students about pH and acid-base reactions.