Used as a precursor in the synthesis of gadolinium-based contrast agents for magnetic resonance imaging (MRI), enhancing image clarity by improving the contrast of internal body structures. Also employed in the preparation of luminescent materials and phosphors for use in medical imaging and display technologies. Serves as a source of gadolinium ions in research and industrial applications involving rare earth elements, including catalysts and specialty glasses. Its paramagnetic properties make it valuable in scientific studies involving magnetic susceptibility and coordination chemistry.