endogenous levels of the various purine nucleosides and bases were determined by high pressure liquid chromatography , with adenosine ( 3 +/- 1 nmol/10 ( 6 ) cells ) , inosine ( 5.3 +/- 1.2 nmol/10 ( 6 ) cells ) , and hypoxanthine ( 2.1 +/- 0.8 nmol/10 ( 6 ) cells ) being the purine metabolites found in the highest concentration .
C0034136
purine nucleosides
C0001443
adenosine