You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named 1-[4-[2-[3-chloro-4-[1-[5-(4-chlorophenyl)-1,2,4-oxadiazol-3-yl]cyclopropyl]-5-fluoroanilino]-2-oxoethyl]phenyl]ethanesulfinate is given. What is its corresponding molecular formula?
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C27H21Cl2FN3O4S-
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