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Under IUPAC nomenclature, a molecule named 2-[4-[[5-chloro-4-[[4-[2-chloro-3-[4-[[(5-oxopyrrolidin-2-yl)methylamino]methyl]phenyl]phenyl]indazol-1-yl]methyl]-2-methoxyphenyl]methyl-methylamino]phenyl]acetic acid is given. What is its corresponding molecular formula?
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C43H41Cl2N5O4
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