The molecule SMILES O=C(COC(=O)c1ccc[n+]([O-])c1)Nc1c(Br)cc([N+](=O)[O-])cc1Br is not a hERG blocker.
The {#molecule |!}{SMILES__description} {SMILES#} is {herg_inhib#not &NULL}a {herg_inhib__names__noun}.