You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-[[2-[benzoyl(2-carboxyethyl)amino]acetyl]-[2-[4-[(2-methylphenyl)carbamoylamino]anilino]-2-oxoethyl]amino]propanoic acid;ethane is the IUPAC name of a molecule. Please give its molecular formula.
user
C33H39N5O8
assistant