You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(Z)-N-[3,4-dihydroxy-1-[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxypentatriacontan-2-yl]-2-hydroxypentadec-9-enamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C56H109NO10
assistant