You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[2-heptyl-1-[(3R,4R,5S,6S)-3,4,5-trihydroxy-2-(hydroxymethyl)-6-methoxyoxan-2-yl]undecyl] 2,3-dihydroxypropanoate is the IUPAC name of a molecule. Please give its molecular formula.
user
C28H54O10
assistant