You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named 2-[4-(4-chlorophenyl)sulfanyl-3-fluoro-5-(1-methoxypropyl)-1,2-dihydropyrrolo[1,2-a]indol-3-yl]acetic acid by IUPAC nomenclature, provide its molecular formula.
user
C23H23ClFNO3S
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