Definition: A purine nucleoside that has guanine linked by its N9 nitrogen to the C1 carbon of ribose. It is a component of ribonucleic acid and its nucleotides play important roles in metabolism. (From Dorland, 28th ed)
8-hydroxyguanosine [ 7,8-dihydro-8-oxoguanosine,8-oxo-7,8-dihydroguanosine,8-oxoG nucleoside,8-oxoGuo,8-oxoguanosine ] immunostimulant for B lymphocytes; structure given in first source