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 N-[[4-[4-(cyclopropylmethyl)piperazin-1-yl]phenyl]methyl]pyrido[2,3-b]pyrazin-6-amine is given. What is its corresponding molecular formula?
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C22H26N6
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