The molecule with the SMILES representation of Cn1cnc2c1c(=O)[nH]c(=O)n2C is not a hERG blocker (>= 10uM).
The molecule with the {SMILES__description} {#representation of |!}{SMILES#} is {herg_blocker#not a hERG blocker (>= 10uM)&a hERG blocker (<10uM)}.
3,7-dimethylpurine-2,6-dione