You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(14Z,17Z,20Z,23Z)-N-[(E)-3-hydroxy-1-[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoct-4-en-2-yl]hexacosa-14,17,20,23-tetraenamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C40H69NO8
assistant