You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 5-amino-2-[[2-[[4-amino-2-[[2-amino-3-(1H-indol-3-yl)propanoyl]amino]-4-oxobutanoyl]amino]-3-sulfanylpropanoyl]amino]-5-oxopentanoic acid .
user
C23H31N7O7S
assistant