You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[(2R,3S,4S,5R,6R)-5-benzoyloxy-3-hydroxy-6-methoxy-4-[(2S,3R,4S,5S,6R)-3,4,5-tribenzoyloxy-6-(benzoyloxymethyl)oxan-2-yl]oxyoxan-2-yl]methyl benzoate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C55H48O17
assistant