The SMILES CN1C2C=C3C(C#N)=C(N)C(C#N)(C#N)C(c4ccc(Br)cc4)C3C1CC2 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}.