The SMILES COc1cccc(Cn2cccc(NC(=O)Nc3cccc(C#N)c3)c2=O)c1 is not a hERG blocking compound (IC50 less than 10uM).
The {#molecule |!}{SMILES__description} {SMILES#} is {herg_inhib#not &NULL}a {herg_inhib__names__noun}.