You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2S,3R,4S,5S,6R)-2-[7-hydroxy-2-(4-hydroxy-3,5-dimethoxyphenyl)-3-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxychromenylium-4-yl]oxy-6-(hydroxymethyl)oxane-3,4,5-triol The above is the IUPAC name of a molecule. Write its molecular formula.
user
C29H35O17+
assistant