You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[carboxymethyl-[[6-[6-[6-[[carboxymethyl(hydroxymethyl)amino]methyl]pyridin-2-yl]-4-(4-methoxyphenyl)pyridin-2-yl]pyridin-2-yl]methyl]amino]acetic acid The above is the IUPAC name of a molecule. Write its molecular formula.
user
C31H31N5O8
assistant