The molecule SMILES O=C(O)[C@H](Cc1c[nH]c2ccccc12)Nc1ncccc1[N+](=O)[O-] is not a hERG blocking compound (IC50 < 10uM).
The {#molecule |!}{SMILES__description} {SMILES#} is {herg_inhib#not &NULL}a {herg_inhib__names__noun}.