You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 1-[(E)-2-phenylethenyl]sulfonyl-N-[2-[4-(trifluoromethyl)phenoxy]ethyl]piperidine-4-carboxamide by IUPAC nomenclature, provide its molecular formula.
user
C23H25F3N2O4S
assistant