The molecule SMILES O=C(NN1C(=O)NC2(CCCCC2)C1=O)c1ccc(-c2ccc([N+](=O)[O-])cc2)o1 is not a hERG blocker.
The {#molecule |!}{SMILES__description} {SMILES#} is {herg_inhib#not &NULL}a {herg_inhib__names__noun}.