You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-[[4-[(4S)-2-[(6R)-6-pyridin-2-ylpiperidin-3-yl]-4-(trifluoromethyl)heptoxy]benzoyl]amino]propanoic acid is the IUPAC name of a molecule. Please give its molecular formula.
user
C28H36F3N3O4
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