The molecule SMILES COC(=O)c1ccc(-c2cc3onc(-c4ccccc4)c3c(=O)n2C)cc1 is not a hERG blocking compound (IC50 < 10uM).
The {#molecule |!}{SMILES__description} {SMILES#} is {herg_inhib#not &NULL}a {herg_inhib__names__noun}.