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What is the molecular formula of the compound with this IUPAC name 4-amino-1-[(2R,4S,5R)-5-[[[(2R,3S,5R)-5-(4-amino-2-oxopyrimidin-1-yl)-2-(hydroxymethyl)oxolan-3-yl]oxy-oxidophosphinothioyl]oxymethyl]-4-hydroxyoxolan-2-yl]pyrimidin-2-one ?
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C18H24N6O9PS-
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