The SMILES Cc1onc(-c2ccccc2Cl)c1C(=O)Nc1cccc(S(=O)(=O)NC2=NCCC2)c1 is not a hERG blocking compound (IC50 < 10uM).
The {#molecule |!}{SMILES__description} {SMILES#} is {herg_inhib#not &NULL}a {herg_inhib__names__noun}.