The chemical compound with the SMILES O=c1[nH]c2ccccc2n2c(-c3ccncc3)nnc12 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}.
O=c1[nH]c2ccccc2n2c(-c3ccncc3)nnc12
O=c1[nH]c2ccccc2n2c(-c3ccncc3)nnc12
1-pyridin-4-yl-5H-[1,2,4]triazolo[4,3-a]quinoxalin-4-one