You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named [(2S,4S,5R,6R)-4,5,6-tris[(3,4,5-trihydroxybenzoyl)oxy]oxan-2-yl]methyl 3,4,5-trihydroxybenzoate by IUPAC nomenclature, provide its molecular formula.
user
C34H28O21
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