The SMILES Cc1cc(Oc2cc(NN3CCCCC3)c([N+](=O)[O-])cc2[N+](=O)[O-])ccc1[N+](=O)[O-] is not a hERG blocking compound.
The {#molecule |!}{SMILES__description} {SMILES#} is {herg_inhib#not &NULL}a {herg_inhib__names__noun}.