You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule 5-amino-2-[[2-[[2-[(2,5-diamino-5-oxopentanoyl)amino]-3-(1H-indol-3-yl)propanoyl]amino]acetyl]amino]-5-oxopentanoic acid ?
user
C23H31N7O7
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