You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 5-(4-methylpiperazin-1-yl)sulfonyl-N-[1-(1-methylpyrazol-4-yl)piperidin-3-yl]pyridin-2-amine into its molecular formula.
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C19H29N7O2S
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