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What is the molecular formula of the compound with this IUPAC name (4aR,8aS)-2-[2-(1,2,3,3a,4,5,6,7-octahydropyrazolo[1,5-a]pyridin-2-yloxy)ethyl]-3,4,4a,5,6,7,8,8a-octahydro-1H-isoquinoline ?
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C18H33N3O
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