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system
Provide the molecular formula for the IUPAC named substance [[(1S)-1-[(2S,3S,5R)-4-chloro-5-(2,4-dioxopyrimidin-1-yl)-4-ethynyl-3-hydroxyoxolan-2-yl]ethoxy]-hydroxyphosphoryl] phosphono hydrogen phosphate .
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C12H16ClN2O14P3
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