Question: Is the SMILES O=c1c(-c2cccc3ccccc23)[n+]([O-])c2ccccc2n1O an inhibitor of the EPH receptor A4?
Answer: no
Question: Is the {SMILES__description} {SMILES#} {MUV-689__names__noun}?
Answer: {MUV-689#no&yes}
O=c1c(-c2cccc3ccccc23)[n+]([O-])c2ccccc2n1O
O=c1c(-c2cccc3ccccc23)[n+]([O-])c2ccccc2n1O
3-naphthalen-1-yl-1-hydroxy-4-oxidoquinoxalin-4-ium-2-one