Used as a pH indicator in acid-base titrations, this compound changes color depending on the acidity or alkalinity of the solution. It is especially useful in educational labs and analytical chemistry for visually determining endpoint transitions. The indicator shows distinct color shifts in different pH ranges, making it suitable for detecting neutralization reactions. Commonly employed in mixtures to cover a broader pH range, it helps in identifying the progress and completion of chemical reactions involving acids and bases. Its clear visual response supports quick and reliable results in qualitative analysis.