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What is the molecular formula of the molecule identified by 1-[(2R,3R,4S,5S)-5-[dideuterio-[(6,8-dimethyl-2-oxo-4H-1,3,2lambda5-benzodioxaphosphinin-2-yl)oxy]methyl]-5-fluoro-3,4-dihydroxyoxolan-2-yl]-5-fluoro-4-sulfanylidenepyrimidin-2-one ?
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C18H19F2N2O8PS
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