The molecule with the SMILES representation of O=C1c2ccccc2-c2nnc(-c3ccccc3)cc21 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=C1c2ccccc2-c2nnc(-c3ccccc3)cc21
O=C1c2ccccc2-c2nnc(-c3ccccc3)cc21
3-phenylindeno[1,2-c]pyridazin-5-one