The SMILES O=C(NCCNc1ccc([N+](=O)[O-])cc1)c1cc(F)c(F)cc1Cl 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}.