You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[[6-amino-2-[[2-[(2,5-diamino-5-oxopentanoyl)amino]-3-(1H-indol-3-yl)propanoyl]amino]hexanoyl]amino]-3-sulfanylpropanoic acid is the IUPAC name of a molecule. Please give its molecular formula.
user
C25H37N7O6S
assistant