You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule (2S)-2-[[(2R)-2-[4-[[4-(2-azidoacetyl)piperazine-1-carbonyl]amino]phenyl]-2-carboxyethyl]carbamoylamino]pentanedioic acid ?
user
C22H28N8O9
assistant