You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named 3-chloro-5-[[2-[2-(9H-fluoren-9-ylmethoxycarbonylamino)ethylsulfanyl]acetyl]amino]benzoic acid by IUPAC nomenclature, provide its molecular formula.
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C26H23ClN2O5S
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