Based on the SMILES representation Cc1nc2nc(SCc3nc4ccccc4[nH]3)[nH]c2cc1Br, the molecule is not a hERG blocking compound (IC50 < 10uM).
Based on the {SMILES__description} {#representation |!}{SMILES#}, the molecule is {herg_inhib#not &NULL}a {herg_inhib__names__noun}.