You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[6-[6-[[(2R,3R)-2-ethyl-4-[(1S,2R)-2-[[(1S,2S)-2-ethylcyclopropyl]methyl]cyclopropyl]-3-methylbutanoyl]oxymethyl]-3,4,5-trimethyloxan-2-yl]oxy-3,4,5-trimethyloxan-2-yl]methyl (2R,3R)-2-ethyl-4-[(1S,2R)-2-[[(1S,2S)-2-ethylcyclopropyl]methyl]cyclopropyl]-3-methylbutanoate is the IUPAC name of a molecule. Please give its molecular formula.
user
C50H86O7
assistant