You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named [(2R,3R,4S)-5-acetyloxy-3-benzoyloxy-4-phenylmethoxycarbonyloxythiolan-2-yl]methyl benzoate by IUPAC nomenclature, provide its molecular formula.
user
C29H26O9S
assistant