You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule identified by (4S)-4-[[(2S)-2-[acetyl(methyl)amino]-3-(4-hydroxyphenyl)propanoyl]amino]-5-[[(2S)-1-amino-1-oxo-3-phenylpropan-2-yl]amino]-5-oxopentanoic acid ?
user
C26H32N4O7
assistant