Used as a pH indicator in laboratory and industrial applications, particularly in processes requiring precise monitoring of neutral to alkaline pH ranges (pH 7.2-8.8). It provides clear color transitions from yellow to red/magenta that help in determining pH changes during titrations, water quality testing, and biochemical assays. Commonly applied in environmental testing, pharmaceutical manufacturing, and educational experiments where visual pH detection is needed. Its solubility in water and stability under various conditions make it suitable for use in liquid formulations and diagnostic kits.