You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[4-[[(2S)-2-[(2-acetamido-3-methylbutanoyl)amino]-5-(carbamoylamino)pentanoyl]amino]phenyl]methyl N-(2-methyl-2-sulfanylpropyl)carbamate is the IUPAC name of a molecule. Please give its molecular formula.
user
C25H40N6O6S
assistant