You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(18Z,21Z,24Z,27Z)-N-[(4E,8E)-3-hydroxy-1-[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyhexacosa-4,8-dien-2-yl]triaconta-18,21,24,27-tetraenamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C62H111NO8
assistant