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-[[5-amino-2-[[5-(diaminomethylideneamino)-2-[(2,4-diamino-4-oxobutanoyl)amino]pentanoyl]amino]-5-oxopentanoyl]amino]-3-(1H-imidazol-5-yl)propanoic acid .
user
C21H35N11O7
assistant