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-(2,6-dimethylanilino)-2-oxoethyl]-methyl-[[5-(3-methylphenyl)-1,3,4-oxadiazol-2-yl]methyl]azanium is given. What is its corresponding molecular formula?
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C21H25N4O2+
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