You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule diazanium;2-[[(2S,4S)-4-(4-amino-2-oxopyrimidin-1-yl)-1,3-dioxolan-2-yl]methoxy]-2-[hydroxy(oxido)phosphoryl]acetate into molecular formula.
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C10H20N5O9P
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