You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-O-butyl 1-O,1-O'-diethyl (2S,3R,5R)-2-phenyl-5-prop-1-en-2-ylcyclopentane-1,1,3-tricarboxylate is the IUPAC name of a molecule. Please give its molecular formula.
user
C25H34O6
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