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 (3E,5E)-2-N-hexyl-7-N,3,6-trimethyl-7-N-(2-methylpropyl)octa-1,3,5,7-tetraene-2,7-diamine is given. What is its corresponding molecular formula?
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C21H38N2
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