The SMILES Oc1ncnc2[nH]ncc12 represents a molecule that is not identified as clinically toxic.
The {SMILES__description} {SMILES#} {#represents|is from!} a molecule that is {clinical_toxicity#not &NULL}identified as {clinical_toxicity__names__adjective}.
1H-pyrazolo[3,4-d]pyrimidin-4-ol