Based on the SMILES representation Cn1c(=O)nc2n(Cc3ccccc3)c3ccccc3cc-2c1=O, the molecule is not a hERG blocker.
Based on the {SMILES__description} {#representation |!}{SMILES#}, the molecule is {herg_inhib#not &NULL}a {herg_inhib__names__noun}.