The molecule with the SMILES O=C(O)C1CCN(c2nc(-c3ccccc3)c3cc(Br)ccc3n2)CC1 is not a hERG blocking compound (IC50 < 10uM).
The molecule with the {SMILES__description} {#representation of |!}{SMILES#} is {herg_inhib#not &NULL}a {herg_inhib__names__noun}.