You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[(2R,3R,4S,5S,6R)-3,4,5-triacetyloxy-6-[[(2R,3R,4S,5R,6R)-3,4,5-triacetyloxy-6-hydroxyoxan-2-yl]methoxy]oxan-2-yl]methyl acetate is the IUPAC name of a molecule. Please give its molecular formula.
user
C26H36O18
assistant