Bromocresol purple is widely used as a pH indicator in various scientific 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 microbiology for preparing culture media to monitor pH changes during bacterial growth. In biochemistry, it is employed in electrophoresis and chromatography to track pH gradients. Additionally, it is utilized in environmental testing to assess the acidity or alkalinity of water samples. Its ability to provide clear visual cues makes it a practical tool in laboratory settings for quick and accurate pH determination.