You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (2R,3R,4S,5R)-4-[(2S,3R,4R,5S)-3,4-dihydroxy-5-[[3-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-2-(2-methoxyphenoxy)propoxy]methyl]oxolan-2-yl]oxy-2-methoxyoxane-3,5-diol by IUPAC nomenclature, provide its molecular formula.
user
C28H38O14
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