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Convert the IUPAC name of a molecule dilithium;2-[4-[3-methyl-5-oxo-4-[[4-(2-sulfonatooxyethylsulfonyl)phenyl]diazenyl]-4H-pyrazol-1-yl]phenyl]sulfonylethyl sulfate into molecular formula.
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C20H20Li2N4O13S4
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