The SMILES Cc1cc(NC(=O)c2cnn3cccnc23)nn1CC(=O)Nc1cccnc1 is not a hERG blocking compound (IC50 < 10uM).
The {#molecule |!}{SMILES__description} {SMILES#} is {herg_inhib#not &NULL}a {herg_inhib__names__noun}.