The SMILES NS(=O)(=O)c1ccc(CCNC(=O)CSc2ccc([N+](=O)[O-])cc2)cc1 is not a hERG blocking compound (IC50 < 10uM).
The {#molecule |!}{SMILES__description} {SMILES#} is {herg_inhib#not &NULL}a {herg_inhib__names__noun}.