You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 4-[2-[3-fluoro-2-methoxy-5-(4-methylpyridin-3-yl)anilino]-1-methylbenzimidazol-5-yl]oxy-N-methylpyridine-2-carboxamide;molecular hydrogen by IUPAC nomenclature, provide its molecular formula.
user
C28H29FN6O3
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