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Name the molecular formula for the molecule established as 5-hydroxy-2-[4-[(3,4,5,6-tetrahydroxyoxan-2-yl)methoxy]phenyl]-7-[3,4,5-trihydroxy-6-[(3,4,5-trihydroxy-6-methyloxan-2-yl)oxymethyl]oxan-2-yl]oxy-2,3-dihydrochromen-4-one using the IUPAC nomenclature.
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C33H42O19
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