The SMILES C=CCn1c(O)c(/C=C/C=Nc2ccccc2)c(=O)[nH]c1=O is not a hERG blocking compound (IC50 < 10uM).
The {#molecule |!}{SMILES__description} {SMILES#} is {herg_inhib#not &NULL}a {herg_inhib__names__noun}.