The SMILES Cn1c(=O)c2c(ncn2C)n(C)c1=O represents a molecule that is not identified as toxic.
The {SMILES__description} {SMILES#} {#represents|is from!} a molecule that is {clinical_toxicity#not &NULL}identified as {clinical_toxicity__names__adjective}.
1,3,7-trimethylpurine-2,6-dione