You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-(hydroxymethyl)-6-[8-hydroxy-6-methyl-7-[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxynaphthalen-1-yl]oxyoxane-3,4,5-triol The above is the IUPAC name of a molecule. Write its molecular formula.
user
C23H30O13
assistant