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What is the molecular formula of the molecule identified by 6'-(diethylamino)-2'-[4-[5-(dimethylamino)-1-[4-(dimethylamino)phenyl]-3-oxo-2-benzofuran-1-yl]anilino]-3'-methylspiro[2-benzofuran-3,9'-xanthene]-1-one ?
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C49H46N4O5
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