You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named [6-[[5-fluoro-4-(7-fluoro-2-methyl-3-propan-2-ylbenzimidazol-5-yl)pyrimidin-2-yl]amino]pyridin-3-yl]-[(3R,5S)-3,4,5-trimethylpiperazin-1-yl]methanone by IUPAC nomenclature, provide its molecular formula.
user
C28H32F2N8O
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