Based on the SMILES representation Cc1onc(-c2ccccc2)c1-c1nc2cc(Cl)ccc2c(=O)o1, 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}.