You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule N-[5-[4-fluoro-3-(7-thiophen-2-yl-3H-imidazo[4,5-c]pyridin-2-yl)-1H-pyrazolo[3,4-c]pyridin-5-yl]pyridin-3-yl]pentanamide .
user
C26H21FN8OS
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