Used in fluorescence imaging due to strong emission and photostability, enabling high-resolution cellular and subcellular visualization. Exhibits excellent selectivity in bio-probe applications, particularly for detecting reactive oxygen species and metal ions in live cells. Applied in photodynamic therapy as a photosensitizer, generating singlet oxygen upon light irradiation to target cancer cells. Also utilized in optoelectronic devices and as a fluorescent tag in biomolecular labeling for real-time tracking of cellular processes.