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What is the molecular formula of the molecule identified by 2-(2,3,4a,5,6,7,8,8a-octahydrobenzo[b][1,4]oxazin-4-yl)-N-[2-(2,3,4a,5,6,7,8,8a-octahydrobenzo[b][1,4]oxazin-4-yl)ethyl]-N-methylethanamine ?
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C21H39N3O2
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