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What is the molecular formula of the compound with this IUPAC name [(2R,3S,4R,5R)-5-(3-aminopyridin-1-ium-1-yl)-3,4-dihydroxyoxolan-2-yl]methoxy-[2-[2-(2-methoxyphenoxy)ethoxy]ethoxy]phosphinic acid ?
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C21H30N2O10P+
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