title: Purine N-oxides. LVI. Photoisomerization of 1-hydroxy-to 3-hydroxyxanthine. Photochemistry of related 1-hydroxypurines.
mesh_terms: D010087:Oxides / Q000528:radiation effects*; D010777:Photochemistry; D011687:Purines / Q000528:radiation effects*; D014466:Ultraviolet Rays; D014970:Xanthines / Q000138:chemical synthesis*
chemical_list: D010087:Oxides; D011687:Purines; D014970:Xanthines