Used in research as a fluorescent probe for detecting metal ions in environmental and biological samples. Its structure allows selective binding with certain transition metals, resulting in measurable changes in fluorescence intensity. Also explored for potential use in organic light-emitting diodes (OLEDs) due to its luminescent properties. Investigated as a photosensitizer in photodynamic therapy for cancer treatment, where it generates reactive oxygen species under light exposure. Additionally, serves as a building block in synthesizing xanthene-based dyes for imaging and labeling applications.