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What is the molecular formula of the molecule 2-[2-[(4aS,8aS)-2,3,4a,5,6,7,8,8a-octahydrobenzo[b][1,4]oxazin-4-yl]ethyl]-[1,2,4]triazolo[4,3-a]pyridin-3-one ?
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C16H22N4O2
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