You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (1S,3R,7R,10S,12S,13R,15S,16S,17S,18S,20S)-7,12,15-trihydroxy-9,9,18,20-tetramethyl-17-[(2S)-4-methyl-5-oxo-2H-furan-2-yl]-4,8,23-trioxahexacyclo[13.7.1.01,13.03,7.03,10.016,20]tricosane-5,14,19-trione by IUPAC nomenclature, provide its molecular formula.
user
C29H36O11
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