You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[(2R,3S,4S,5R,6S)-6-[(2R,3R,4S,5R,6R)-2-[2-(3,4-dihydroxyphenyl)ethoxy]-5-[(E)-3-(3,4-dihydroxyphenyl)prop-2-enoyl]oxy-6-(hydroxymethyl)-3-[(2S,3R,4S,5S)-3,4,5-trihydroxyoxan-2-yl]oxyoxan-4-yl]oxy-3,4,5-trihydroxyoxan-2-yl]methyl (E)-3-(3,4-dihydroxyphenyl)prop-2-enoate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C43H50O23
assistant