You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name methyl 4-[15-(4-methoxycarbonylphenyl)-10,20-dinaphthalen-1-yl-21,23-dihydroporphyrin-5-yl]benzoate into its molecular formula.
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C56H38N4O4
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