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 2-N-(2-tert-butyl-4-ethylcyclohexa-2,4-dien-1-yl)-3-N-propan-2-ylpyridine-2,3-diamine is given. What is its corresponding molecular formula?
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C20H31N3
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