You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(3R)-3-[acetyl-[(4R)-4-(4-methanehydrazonoylphenyl)-4-methyl-2,5-dioxoimidazolidin-1-yl]amino]-3-(3-phenoxyphenyl)propanoic acid The above is the IUPAC name of a molecule. Write its molecular formula.
user
C28H27N5O6
assistant