You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the compound with this IUPAC name [(2R,3S,3aS,4S,6S,6aR,7S,8S,9S)-6-acetyloxy-3a,4-di(butanoyloxy)-2,3-dihydroxy-3,6,9-trimethyl-8-[(2S)-2-methylbutanoyl]oxy-4,5,6a,7,8,9-hexahydro-2H-azuleno[4,5-b]furan-7-yl] octanoate ?
user
C38H60O13
assistant