You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named ethyl 1-[4-[4-[5-chloro-3-(methylamino)thiophen-2-yl]phenyl]phenyl]cyclopropane-1-carboxylate by IUPAC nomenclature, provide its molecular formula.
user
C23H22ClNO2S
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