The SMILES COc1ccc(CCNC(=O)CN(c2cc([N+](=O)[O-])ccc2OC)S(C)(=O)=O)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}.