The molecule is guanosine substituted at the purine 8-position by a hydroxy group. It is used as a biomarker of oxidative DNA damage. It has a role as a biomarker.
2-amino-9-[(2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]-1,7-dihydropurine-6,8-dione