The SMILES CSc1nsc(NC(=O)CCNC(=O)c2ccc([N+](=O)[O-])cc2)n1 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}.