Used as a fluorescent probe in biological and chemical research due to its strong fluorescence properties. It is applied in the study of molecular interactions, binding assays, and cellular imaging. The compound is also utilized in the development of sensors for detecting various analytes in environmental and biochemical samples. Additionally, it serves as a tracer in water flow studies and as a marker in diagnostic applications. Its sulfonic acid groups enhance solubility in aqueous solutions, making it suitable for use in water-based systems.