You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance N-[2-[(3S,4S,5S,6R)-4,5-dihydroxy-6-(hydroxymethyl)oxan-3-yl]oxyethyl]-2-hydroxy-N-(2-hydroxyoctadecyl)hexadecanamide .
user
C42H83NO8
assistant