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 3-[1-[2-[2-[2-(1,2,3,4-tetrahydronaphthalen-1-ylamino)ethoxy]ethoxy]ethyl]indol-3-yl]-4-[1-[2-(1,2,3,4-tetrahydronaphthalen-1-ylamino)ethyl]indol-3-yl]pyrrole-2,5-dione is given. What is its corresponding molecular formula?
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C48H51N5O4
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