You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 2-[2-[[6-amino-2-[[2-amino-3-(1H-imidazol-5-yl)propanoyl]amino]hexanoyl]amino]propanoylamino]butanedioic acid .
user
C19H31N7O7
assistant