The SMILES O=C(NN1C(=O)c2ccccc2NC1c1ccccn1)c1ccc([N+](=O)[O-])cc1 is not a hERG blocking compound (IC50 < 10uM).
The {#molecule |!}{SMILES__description} {SMILES#} is {herg_inhib#not &NULL}a {herg_inhib__names__noun}.