The molecule with the SMILES representation of O=c1c2ccccc2nc2c3ccccc3ncn12 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=c1c2ccccc2nc2c3ccccc3ncn12
O=c1c2ccccc2nc2c3ccccc3ncn12
quinazolino[4,3-b]quinazolin-8-one