You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[(2R,3R,4S,5R,6S)-3-hydroxy-2-(hydroxymethyl)-5,6-bis[(3,4,5-trimethoxybenzoyl)oxy]oxan-4-yl] 3,4,5-trimethoxybenzoate is the IUPAC name of a molecule. Please give its molecular formula.
user
C36H42O18
assistant