The SMILES CCOc1ccc(NC(=O)C2C(c3ccccc3)C2(Cl)Cl)cc1 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}.