WR-1065 dihydrochloride is primarily used as a radioprotective agent, helping to protect normal tissues from the damaging effects of radiation during cancer therapy. It works by scavenging free radicals generated by radiation, thereby reducing oxidative stress and cellular damage. This compound is particularly valuable in minimizing side effects in patients undergoing radiotherapy, allowing for higher doses of radiation to be targeted at tumors while sparing healthy tissues. Additionally, it has been studied for its potential to protect against radiation exposure in occupational settings, such as for nuclear workers or astronauts. Its cytoprotective properties also make it a subject of research in preventing radiation-induced complications in bone marrow and other sensitive tissues.