You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(8Z,11Z,14Z,17Z)-N-[3-hydroxy-1-[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoctacosan-2-yl]icosa-8,11,14,17-tetraenamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C54H99NO8
assistant