The SMILES Cc1nn(CCC(=O)NCCc2ccccc2Cl)c(=O)c2nn(-c3ccccc3)c(C)c12 is not a hERG blocking compound.
The {#molecule |!}{SMILES__description} {SMILES#} is {herg_inhib#not &NULL}a {herg_inhib__names__noun}.