The SMILES O=S1(=O)CCOC[C@H](Cc2ccccc2)N1Cc1ccc(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}.