The SMILES Cn1cc(CCC(=O)N2CCCC(Nc3ccc(F)cc3)C2)cn1 is not a hERG blocking compound (IC50 < 10uM).
The {#molecule |!}{SMILES__description} {SMILES#} is {herg_inhib#not &NULL}a {herg_inhib__names__noun}.