You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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1-O-ethyl 3-O-methyl 2-[2-(1-ethoxy-3-methoxy-1,3-dioxopropan-2-yl)-1-pyrimidin-2-ylindol-7-yl]propanedioate is the IUPAC name of a molecule. Please give its molecular formula.
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C24H25N3O8
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