You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[[4-amino-2-[[5-amino-2-[(2-amino-3-hydroxybutanoyl)amino]-5-oxopentanoyl]amino]-4-oxobutanoyl]amino]pentanedioic acid is the IUPAC name of a molecule. Please give its molecular formula.
user
C18H30N6O10
assistant