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What is the molecular formula of the compound with this IUPAC name (4aR,5aS,8aR,13aS,15aS,15bS)-5a-ethoxy-2,4a,5,7,8,13a,15,15a,15b,16-decahydro4,6-methanoindolo[3,2,1-ij]oxepino[2,3,4-de]pyrrolo[2,3-h]quinolin-14-one ?
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C23H26N2O3
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