You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 5-[[(aminodiazenyl)-(2,6-dichlorophenyl)methylidene]amino]-4-oxo-3-(phenylmethoxycarbonylamino)pentanoic acid into molecular formula.
user
C20H19Cl2N5O5
assistant