The SMILES O=C(COC(=O)c1cc[n+]([O-])cc1)Nc1ccc(Cl)cc1C(F)(F)F 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}.