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system
Provide the molecular formula for the IUPAC named substance 1-[4-[2-(4-fluoro-1H-pyrrolo[2,3-b]pyridin-5-yl)ethynyl]pyridin-2-yl]-3-[4-(piperazin-1-ylmethyl)-3-(trifluoromethyl)phenyl]urea .
user
C27H23F4N7O
assistant