title: Long-lived organic radicals formed by irradiation of FD&C blue no. 2 and thionine in aqueous solution. BNWL-715. 2.
mesh_terms: D004396:Coloring Agents / Q000528:radiation effects*; D004355:Drug Stability; D004578:Electron Spin Resonance Spectroscopy; D011830:Radiation Effects
chemical_list: D004396:Coloring Agents