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 4-amino-2-[[2-[[4-amino-2-[(2-amino-3-methylbutanoyl)amino]-4-oxobutanoyl]amino]-3-sulfanylpropanoyl]amino]-4-oxobutanoic acid ?
user
C16H28N6O7S
assistant