Used primarily in research and specialized optical applications, this compound serves as a precursor for the synthesis of thulium-doped materials. These materials are employed in solid-state lasers operating in the near-infrared range, useful in medical and dental laser systems. It is also utilized in the production of luminescent materials for display technologies and in certain radiographic imaging applications due to thulium's favorable X-ray emission characteristics. Additionally, it finds use in scientific studies involving lanthanide chemistry and magnetic properties at low temperatures.