Based on the SMILES O=C(Nn1cnnc1)c1cc(-c2cccc(Br)c2)nc2ccccc12, the molecule is not a hERG blocking compound (IC50 less than 10uM).
Based on the {SMILES__description} {#representation |!}{SMILES#}, the molecule is {herg_inhib#not &NULL}a {herg_inhib__names__noun}.