The molecule SMILES Cc1nc2ccc(NC(=O)c3ccc(Cl)c(NC(=O)c4cccs4)c3)cc2s1 is not a hERG blocking compound (IC50 < 10uM).
The {#molecule |!}{SMILES__description} {SMILES#} is {herg_inhib#not &NULL}a {herg_inhib__names__noun}.