The SMILES Cc1ccc(C)c(Oc2cc(NN3CCCCC3)c([N+](=O)[O-])cc2[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}.