The SMILES CC1=NN=C(c2ccccc2)C(c2c[nH]c3ccccc23)N1O is not a human ether-à-go-go related gene (hERG) blocking compound.
The {#molecule |!}{SMILES__description} {SMILES#} is {herg_inhib#not &NULL}a {herg_inhib__names__noun}.