You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule [4,5,5,5-tetrafluoro-4-(trifluoromethyl)pentyl] propanoate;[4,5,5,5-tetrafluoro-4-(trifluoromethyl)pentyl] prop-2-enoate .
user
C18H20F14O4
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