title: Letter: Photosensitization of nucleic acid constituents by proflavine: NO2 radicals due to impurities.
mesh_terms: D000166:Acridines; D004578:Electron Spin Resonance Spectroscopy; D005609:Free Radicals; D005615:Freezing; D008027:Light; D009585:Nitrogen Dioxide; D009705:Nucleosides; D009711:Nucleotides; D011687:Purines; D011725:Pyridines; D012996:Solutions; D014867:Water
chemical_list: D000166:Acridines; D005609:Free Radicals; D009705:Nucleosides; D009711:Nucleotides; D011687:Purines; D011725:Pyridines; D012996:Solutions; D014867:Water; D009585:Nitrogen Dioxide