You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named ethyl (2S)-2-[5-(4-formylphenyl)-2,6-dimethyl-4-(4-methyl-4-prop-2-enoxypiperidin-1-yl)pyridin-3-yl]-2-[(2-methylpropan-2-yl)oxy]acetate by IUPAC nomenclature, provide its molecular formula.
user
C31H42N2O5
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