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system
Provide the molecular formula for the IUPAC named substance 5-[2-[(4E)-4-[(2Z)-2-[3-hydroxy-4-(3-hydroxypropyl)-2-methylidenecyclohexylidene]ethylidene]-7a-methyl-2,3,3a,5,6,7-hexahydro-1H-inden-1-yl]ethyl]-1-(2-naphthalen-2-ylethyl)pyrrolidin-2-one .
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