You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[6-amino-2-[[6-amino-2-[[6-amino-2-[[2-(pyrrolidine-2-carbonylamino)acetyl]amino]hexanoyl]amino]hexanoyl]amino]hexanoyl]pyrrolidine-2-carboxylic acid is the IUPAC name of a molecule. Please give its molecular formula.
user
C30H55N9O7
assistant