You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule (2R,3R,5R)-2-[[(3R,5R,6S)-3-[(2S,3R,5R)-5-[(2S,3R)-5-[(2S,3R,5R)-3,4-dihydroxy-6-(hydroxymethyl)-5-methoxyoxan-2-yl]oxy-3,4-dihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-3,4-dihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-6-[(3R,5R,6S)-6-[(3R,5R,6S)-6-[(3R,5R,6R)-4,5-dihydroxy-2-(hydroxymethyl)-6-methoxyoxan-3-yl]oxy-4,5-dihydroxy-2-(hydroxymethyl)oxan-3-yl]oxy-4,5-dihydroxy-2-(hydroxymethyl)oxan-3-yl]oxy-4,5-dihydroxyoxan-2-yl]methoxy]-6-ethyloxane-3,4,5-triol ?
user
C51H88O40
assistant