You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
methyl (3S)-3-(2-propan-2-yloxyphenyl)-3-(5,6,7-trihydroxy-4-oxo-2-phenylchromen-8-yl)propanoate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C28H26O8
assistant