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system
Provide the molecular formula for the IUPAC named substance [(1S,6R,7R)-3-[3-(5-chloro-3-methoxyquinoxalin-6-yl)-2H-pyrazolo[3,4-b]pyrazin-6-yl]-7-(2-fluorophenyl)-3-azabicyclo[4.1.0]heptan-7-yl]methanamine .
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C27H24ClFN8O
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