You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the compound with this IUPAC name 5-acetamido-2-[2-[6-[2-[[(21Z,24Z)-hexatriaconta-21,24-dienoyl]amino]-3-hydroxyhexacosoxy]-4,5-dihydroxy-2-(hydroxymethyl)oxan-3-yl]oxy-3,5-dihydroxy-6-(hydroxymethyl)oxan-4-yl]oxy-4-hydroxy-6-(1,2,3-trihydroxypropyl)oxane-2-carboxylic acid ?
user
C85H158N2O21
assistant