You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name [3-[(5-methyl-2-pyridin-3-yl-[1,2,4]triazolo[1,5-a]pyrimidin-7-yl)amino]phenyl]-(4-phenylpiperazin-1-yl)methanone into its molecular formula.
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C28H26N8O
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