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What is the molecular formula of the molecule identified by (2R)-2-[1-amino-6-[(7-hydroxy-6-methyl-4,5,7,8-tetrahydropyrazolo[1,5-d][1,4]diazepin-2-yl)amino]-2,7-naphthyridin-3-yl]propanenitrile ?
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C19H22N8O
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