You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[[2-[[3-carboxy-2-(2,6-diaminohexanoylamino)propanoyl]amino]-3-phenylpropanoyl]amino]butanedioic acid The above is the IUPAC name of a molecule. Write its molecular formula.
user
C23H33N5O9
assistant