The SMILES O=C(Cc1csc(Nc2nc(=S)[nH]c3ccccc23)n1)NCc1ccc(Cl)cc1 is not a hERG blocking compound (IC50 < 10uM).
The {#molecule |!}{SMILES__description} {SMILES#} is {herg_inhib#not &NULL}a {herg_inhib__names__noun}.