You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule 2-((1,2,3,4,5,6-13C6)cyclohexatrienylamino)-5-(4-methylpentan-2-ylamino)cyclohexa-2,5-diene-1,4-dione into molecular formula.
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C18H22N2O2
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