You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
5-[[(1R)-3-[[(2S,5S)-5-amino-7-[[(2S)-2-amino-4-phenylbutyl]amino]-2-[2-[6-(dimethylamino)-1,3-dioxobenzo[de]isoquinolin-2-yl]ethyl]-4-oxoheptanoyl]amino]-1-carboxypropyl]amino]-5-oxopentanoic acid The above is the IUPAC name of a molecule. Write its molecular formula.
user
C42H55N7O9
assistant