The molecule SMILES COc1cc(C2Nc3ccc4ncccc4c3C3=C2C(=O)CCC3)ccc1O 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}.