Based on the SMILES O=C1C2C3c4ccccc4C(c4ccccc43)C2C(=O)N1Cc1ccccn1, 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}.