The SMILES Cc1nnc(Sc2c(-c3ccccc3)c3ccc(Cl)cc3[nH]c2=O)s1 is not a human ether-à-go-go related gene (hERG) blocker.
The {#molecule |!}{SMILES__description} {SMILES#} is {herg_inhib#not &NULL}a {herg_inhib__names__noun}.