The molecule SMILES Cc1ccc(C2Nc3ccc4ccccc4c3C3=C2C(=O)CC(C)(C)C3)o1 is not a hERG blocking compound.
The {#molecule |!}{SMILES__description} {SMILES#} is {herg_inhib#not &NULL}a {herg_inhib__names__noun}.