You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named N-[(2S)-1-(4-fluorophenyl)-3-[[(3R)-piperidin-3-yl]amino]but-3-en-2-yl]-1-[2-fluoro-4-(trifluoromethyl)phenyl]cyclopropane-1-carboxamide by IUPAC nomenclature, provide its molecular formula.
user
C26H28F5N3O
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