You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name methyl 4-[3-[1-benzhydryl-2-[2-[(2-chlorophenyl)sulfonylamino]ethyl]indol-3-yl]propyl]benzoate into its molecular formula.
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C40H37ClN2O4S
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