The SMILES NC(=O)CC(NC(=O)c1ccccc1)c1ccc(NCc2ccc(F)c(F)c2)c([N+](=O)[O-])c1 is not a hERG blocking compound (IC50 less than 10uM).
The {#molecule |!}{SMILES__description} {SMILES#} is {herg_inhib#not &NULL}a {herg_inhib__names__noun}.