You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named ethane;5-[4-[6-(6H-indeno[2,1-b]indol-5-yl)-2-methyl-1-phenylindol-3-yl]-3-methylphenyl]-6H-indeno[2,1-b]indole is given. What is its corresponding molecular formula?
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C54H43N3
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