You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (2S,3R)-2-[[(2S)-4-amino-2-[[(2S)-2-(hexadecanoylamino)-3-(4-hydroxyphenyl)propanoyl]amino]-4-oxobutanoyl]amino]-3-hydroxybutanoic acid by IUPAC nomenclature, provide its molecular formula.
user
C33H54N4O8
assistant