The molecule with the SMILES FC(F)(F)c1cccc(Cn2nnnc2-c2cccc(C(F)(F)F)c2)c1 is not a hERG blocking compound (IC50 less than 10uM).
The molecule with the {SMILES__description} {#representation of |!}{SMILES#} is {herg_inhib#not &NULL}a {herg_inhib__names__noun}.