Ethyl Orange is widely used as a pH indicator in various analytical chemistry applications. It is particularly useful in titrations to determine the endpoint of acid-base reactions, where it changes color depending on the pH of the solution. In biological and biochemical research, it serves as a staining agent to differentiate between acidic and basic components in cell structures or tissue samples. Additionally, it is employed in environmental testing to monitor pH levels in water bodies, ensuring compliance with environmental safety standards. Its vivid color change makes it a practical tool for educational demonstrations in chemistry laboratories, helping students visualize pH transitions effectively.