You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named [(1R,2S,3R,5R)-2-[[5-[tert-butyl(dimethyl)silyl]-4-methylfuran-2-yl]methyl]-5-methyl-3-[(E)-4-oxopent-2-en-2-yl]cyclohexyl] acetate by IUPAC nomenclature, provide its molecular formula.
user
C26H42O4Si
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