The SMILES Cc1ccc(N2CC(C(=O)Nc3c4c(nn3C(C)(C)C)CS(=O)(=O)C4)CC2=O)cc1 is not a hERG blocking compound (IC50 < 10uM).
The {#molecule |!}{SMILES__description} {SMILES#} is {herg_inhib#not &NULL}a {herg_inhib__names__noun}.