You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named methyl 2-hydroxy-5-[2-[4-[2-(4-hydroxy-3-methoxycarbonylphenyl)ethenyl]phenyl]ethenyl]benzoate is given. What is its corresponding molecular formula?
user
C26H22O6
assistant