The molecule is a thiopurine that is inosine in which the aromatic hydroxy group is replaced by a methylsulfanediyl group. It is a purine ribonucleoside and a thiopurine.
(2R,3S,4R,5R)-2-(hydroxymethyl)-5-(6-methylsulfanylpurin-9-yl)oxolane-3,4-diol