The SMILES O=C(O)c1ccc(N2C(=O)c3cccc4c(C(=O)O)ccc(c34)C2=O)cc1 is not a hERG blocking compound (IC50 < 10uM).
The {#molecule |!}{SMILES__description} {SMILES#} is {herg_inhib#not &NULL}a {herg_inhib__names__noun}.