You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[[2-[[2-[(2-amino-4-methylsulfanylbutanoyl)amino]-3-(1H-indol-3-yl)propanoyl]amino]-5-(diaminomethylideneamino)pentanoyl]amino]-3-(1H-indol-3-yl)propanoic acid is the IUPAC name of a molecule. Please give its molecular formula.
user
C33H43N9O5S
assistant