title: Free radicals in pyrimidines: a single crystal of dihydro-6-methyl-uracil irradiated at 295 degrees K.
mesh_terms: D003460:Crystallization; D004247:DNA / Q000138:chemical synthesis; D004578:Electron Spin Resonance Spectroscopy; D004583:Electrons; D005609:Free Radicals; D006859:Hydrogen; D007700:Kinetics; D008745:Methylation; D009584:Nitrogen; D011854:Radiochemistry; D013696:Temperature; D014498:Uracil / Q000528:radiation effects*
chemical_list: D005609:Free Radicals; D014498:Uracil; D006859:Hydrogen; D004247:DNA; D009584:Nitrogen