The molecule SMILES O=C1c2cccc([N+](=O)[O-])c2C(=O)N1c1c[nH]c(=O)[nH]c1=O 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}.