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system
Name the molecular formula for the molecule established as methoxymethyl 4-[10-[4-(2-hydroxyethoxycarbonyl)phenyl]-15-[4-(methoxymethoxycarbonyl)phenyl]-20-[4-(methoxymethylcarbamoyl)phenyl]-21,23-dihydroporphyrin-5-yl]benzoate using the IUPAC nomenclature.
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C56H47N5O11
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