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What is the molecular formula of the compound with this IUPAC name (4S)-3-methyl-4-(3-propan-2-yloxyphenyl)-1-([1,2,4]triazolo[4,3-b]pyridazin-6-yl)-5,7-dihydro-4H-pyrazolo[3,4-b]pyridin-6-one ?
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C21H21N7O2
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