Used as a fluorescent probe in biological imaging due to its ability to cross cell membranes and bind to metal ions, particularly zinc and aluminum. Its fluorescence enhances upon metal binding, making it useful for detecting and visualizing metal ion distribution in live cells and tissues. Also employed in research settings to study neurodegenerative diseases where metal ion dysregulation occurs. Additionally, serves as an intermediate in the synthesis of pharmaceuticals and antimicrobial agents owing to the quinoline core’s bioactivity.