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What is the molecular formula of the molecule methyl (1S,3S,4aS,8S,8aS)-3-hydroxy-1-methyl-8-[(2S,3R,4S,5R,6R)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxy-1,3,4,4a,8,8a-hexahydropyrano[3,4-c]pyran-5-carboxylate ?
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C25H34O15
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