The molecule SMILES C=CCn1c(=O)[nH]c2cc(C(=O)N3CCN(c4cccc(Cl)c4)CC3)ccc2c1=O is not a hERG blocking compound (IC50 less than 10uM).
The {#molecule |!}{SMILES__description} {SMILES#} is {herg_inhib#not &NULL}a {herg_inhib__names__noun}.