You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named [(1S,3R,4R,5R,6R,7S,8R,11S,13S,16S,17R,18E)-16-[(1R)-1-decanoyloxyethyl]-6-hydroxy-13-methoxy-5,17,19-trimethyl-14-oxo-2,15-dioxatetracyclo[9.8.0.01,7.03,8]nonadeca-9,18-dien-4-yl] cyclopenta-1,3-diene-1-carboxylate by IUPAC nomenclature, provide its molecular formula.
user
C39H56O9
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