The SMILES O=C(O)c1cccc(N2C(=O)c3cc([N+](=O)[O-])cc4cc([N+](=O)[O-])cc(c34)C2=O)c1 represents a molecule that is not a hERG blocking compound (IC50 < 10uM).
The {SMILES__description} {SMILES#} {#represents|is from!} a molecule that is {herg_inhib#not &NULL}a {herg_inhib__names__noun}.