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What is the molecular formula of the molecule 1-[(2R,4R)-2-[[(2S,4R)-4-(3-chlorophenyl)-2-oxo-1,3,2lambda5-dioxaphosphinan-2-yl]oxymethyl]-1,3-dioxolan-4-yl]-5-methylpyrimidine-2,4-dione ?
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C18H20ClN2O8P
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