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 9-[4-[2-(2-ethoxyethoxy)ethoxy]phenyl]-N-(4-ethylphenyl)-N-(4-methoxyphenyl)carbazol-3-amine is given. What is its corresponding molecular formula?
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C39H40N2O4
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