Based on the SMILES Cc1onc(-c2ccc(Cl)cc2)c1-c1ccnc(=S)[nH]1, the molecule is not a hERG blocker.
Based on the {SMILES__description} {#representation |!}{SMILES#}, the molecule is {herg_inhib#not &NULL}a {herg_inhib__names__noun}.