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What is the molecular formula of the compound with this IUPAC name 2-[(4aS,8aR)-2,3,4a,5,6,7,8,8a-octahydrobenzo[b][1,4]oxazin-4-yl]-N-[[(2S)-2,3-dihydro-1-benzofuran-2-yl]methyl]acetamide ?
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C19H26N2O3
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