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What is the molecular formula of the molecule identified by 2-[(3R,6aR,8S,10aR)-3-hydroxy-1-(pyridine-3-carbonyl)-3,4,6,6a,8,9,10,10a-octahydro-2H-pyrano[2,3-c][1,5]oxazocin-8-yl]-N-propylacetamide ?
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C20H29N3O5
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