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system
Name the molecular formula for the molecule established as (E)-N-[5-[4-amino-3-(4-chlorophenyl)pyrazolo[3,4-d]pyrimidin-1-yl]-2-methylphenyl]-4-[cyclopropyl(methyl)amino]-N-methylbut-2-enamide using the IUPAC nomenclature.
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C27H28ClN7O
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