The SMILES Cc1ccc(COCC(CC(C)C)N2CCN(C(=O)c3cccc(C(F)(F)F)c3)CCC2=O)cc1 is not a hERG blocking compound.
The {#molecule |!}{SMILES__description} {SMILES#} is {herg_inhib#not &NULL}a {herg_inhib__names__noun}.