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What is the molecular formula of the compound with this IUPAC name S-[[(2S,3S,4aS,5S,7S,8R,8aR)-8-azido-2,3-dimethoxy-2,3-dimethyl-7-phenylsulfanyl-5,7,8,8a-tetrahydro-4aH-pyrano[3,4-b][1,4]dioxin-5-yl]methyl] ethanethioate ?
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C20H27N3O6S2
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