You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule 2-[[2-[[5-(diaminomethylideneamino)-2-[(2,5-diamino-5-oxopentanoyl)amino]pentanoyl]amino]-3-(1H-indol-3-yl)propanoyl]amino]-4-methylsulfanylbutanoic acid ?
user
C27H41N9O6S
assistant