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Under IUPAC nomenclature, a molecule named 5-[[[9-[(2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]-6-[2-(4-nitrophenyl)ethoxy]-3,6-dihydro-1H-purin-2-ylidene]amino]methyl]-1H-pyrimidine-2,4-dione is given. What is its corresponding molecular formula?
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C23H26N8O8
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