The SMILES O=C(Cn1c(=O)c2sccc2n(Cc2cccc([N+](=O)[O-])c2)c1=O)NCCc1ccccc1 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}.