Used as a pH-sensitive azo dye in analytical chemistry for detecting metal ions and in spectrophotometric analysis. Its color changes with pH, making it suitable as an indicator in titrations involving weak acids or bases. Also investigated for potential use in dye-sensitized solar cells due to its light absorption properties. Shows moderate affinity for binding to certain proteins, useful in biochemical staining and separation techniques. Explored in research for antimicrobial activity due to its sulfonamide and azo functional groups.