You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named [(2R,5R)-5-[5-(3-aminoprop-1-ynyl)-2,4-dioxopyrimidin-1-yl]-3-[(1R)-1-(methyldisulfanyl)ethoxy]oxolan-2-yl]methyl hydrogen phosphate by IUPAC nomenclature, provide its molecular formula.
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C15H21N3O8PS2-
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