The SMILES O=C(N/N=C/c1ccccc1)c1ccc(N2CCOCC2)c([N+](=O)[O-])c1 is not a hERG blocking compound (IC50 < 10uM).
The {#molecule |!}{SMILES__description} {SMILES#} is {herg_inhib#not &NULL}a {herg_inhib__names__noun}.