You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[[2-[[2-[(2-amino-3-hydroxypropanoyl)amino]-5-(diaminomethylideneamino)pentanoyl]amino]-3-hydroxypropanoyl]amino]-3-(4-hydroxyphenyl)propanoic acid The above is the IUPAC name of a molecule. Write its molecular formula.
user
C21H33N7O8
assistant