Based on the SMILES O=C1NC(c2cc(Cl)cc([N+](=O)[O-])c2O)Nc2ccccc21, the molecule is not a human ether-à-go-go related gene (hERG) blocker.
Based on the {SMILES__description} {#representation |!}{SMILES#}, the molecule is {herg_inhib#not &NULL}a {herg_inhib__names__noun}.