You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 2-[4-[2,2-dimethyl-4-[4-methyl-6-(4-methylpiperazin-1-yl)-1,3,5-triazin-2-yl]piperazin-1-yl]pyrimidin-2-yl]ethanol into molecular formula.
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C21H33N9O
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