The molecule SMILES C[N+]1=NN=C2C(C(N)=O)=NC=[N+]2C1=O is not a human ether-à-go-go related gene (hERG) blocker.
The {#molecule |!}{SMILES__description} {SMILES#} is {herg_blocker#not &NULL}a {herg_blocker__names__noun}.
3-methyl-4-oxidanylidene-imidazo[5,1-d][1,2,3,5]tetrazine-3,5-diium-8-carboxamide