The molecule SMILES O=C(Nc1n[nH]c(-c2ccc(Cl)cc2)n1)c1ccccc1 is not a hERG blocking compound (IC50 < 10uM).
The {#molecule |!}{SMILES__description} {SMILES#} is {herg_inhib#not &NULL}a {herg_inhib__names__noun}.