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What is the molecular formula of the molecule identified by (E)-2-[(2S,3S,7aS)-3-ethyl-9-(furan-3-yl)-7a-hydroxy-8-methoxy-2,3,4,6,7,12b-hexahydro-1H-indolo[2,3-a]quinolizin-2-yl]-3-methoxyprop-2-enoic acid ?
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C26H30N2O6
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