You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[4-[1-[(4-fluorophenyl)methyl]piperidin-4-yl]oxy-3-methylphenyl]thiophene-3-carboxamide;2,2,2-trifluoroacetic acid is the IUPAC name of a molecule. Please give its molecular formula.
user
C26H26F4N2O4S
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