You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[(2R,3R,4R,5S,6S)-3,4,5-triacetyloxy-6-[(E)-2-oxo-4-[4-[2-[2-[2-[4-[(E)-3-oxo-4-[(2S,3S,4R,5R,6R)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]but-1-enyl]phenoxy]ethoxy]ethoxy]ethoxy]phenyl]but-3-enyl]oxan-2-yl]methyl acetate is the IUPAC name of a molecule. Please give its molecular formula.
user
C54H66O24
assistant