The SMILES O=c1c2ccccc2c(=O)n(Cc2ccccc2)n1Cc1ccccc1 is not a hERG blocking compound (IC50 < 10uM).
The {#molecule |!}{SMILES__description} {SMILES#} is {herg_inhib#not &NULL}a {herg_inhib__names__noun}.