You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2R,3R,4R,5R)-hexane-1,2,3,4,5,6-hexol;(2R,3R,4S,5R,6S)-2-(hydroxymethyl)-6-[(2R,3S,4R,5R,6R)-4,5,6-trihydroxy-2-(hydroxymethyl)oxan-3-yl]oxyoxane-3,4,5-triol;(2S,3R,4R,5R)-4-[(2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyhexane-1,2,3,5,6-pentol is the IUPAC name of a molecule. Please give its molecular formula.
user
C30H60O28
assistant