The SMILES O=C1CN(O)C=C2N=c3ccccc3=C2N1c1ccc([N+](=O)[O-])cc1 is from a molecule that is not a hERG blocking compound.
The {SMILES__description} {SMILES#} {#represents|is from!} a molecule that is {herg_inhib#not &NULL}a {herg_inhib__names__noun}.