The chemical with the SMILES NNc1nnc(-c2ccccc2)c(-c2ccccc2)n1 is not an inhibitor of the EPH receptor A4.
The {#molecule|compound|chemical|molecular species|chemical compound!} with the {SMILES__description} {#representation of |!}{SMILES#} is {MUV-689#not &NULL}{MUV-689__names__noun}.
NNc1nnc(-c2ccccc2)c(-c2ccccc2)n1
NNc1nnc(-c2ccccc2)c(-c2ccccc2)n1
(5,6-diphenyl-1,2,4-triazin-3-yl)hydrazine