You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2,4-diamino-2-[1-(4-carbamimidoylphenyl)-2-(hydroxyamino)-2-oxoethyl]-3,6-dioxohexanoic acid is the IUPAC name of a molecule. Please give its molecular formula.
user
C15H19N5O6
assistant