The SMILES Cn1cnc2c1c(=O)[nH]c(=O)n2C represents a molecule that is not identified as a CYP2C9 substrate.
The {SMILES__description} {SMILES#} {#represents|is from!} a molecule that is {CYP2C9_Substrate#not &NULL}identified as a {CYP2C9_Substrate__names__noun}.
3,7-dimethylpurine-2,6-dione