The SMILES O=C(Cc1ccc(Cl)cc1)Nc1ccc(S(=O)(=O)Nc2cnc3ccccc3n2)cc1 is not a hERG blocking compound (IC50 < 10uM).
The {#molecule |!}{SMILES__description} {SMILES#} is {herg_inhib#not &NULL}a {herg_inhib__names__noun}.