You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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3-(1-methylpyrazol-4-yl)-5-[3-[(3R)-morpholin-3-yl]-4-(oxan-4-yl)phenyl]pyrazin-2-amine is the IUPAC name of a molecule. Please give its molecular formula.
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C23H28N6O2
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