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What is the molecular formula of the molecule 5-hydroxy-2-(3-hydroxy-4-methoxyphenyl)-7-[(2S,5R)-3,4,5-trihydroxy-6-[[(2R,5R)-3,4,5-trihydroxy-6-methyloxan-2-yl]oxymethyl]oxan-2-yl]oxy-2,3-dihydrochromen-4-one ?
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C28H34O15
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