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Can you give the molecular formula of the molecule 2-methyl-2-[[4-oxo-5-(quinolin-6-ylamino)-2,3-dihydropyrimido[5,4-e][1,3]oxazin-7-yl]amino]-N-(2,2,2-trifluoroethyl)propanamide ?
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C21H20F3N7O3
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