You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named [2-[(1,5-dimethyl-3-oxo-2-phenylpyrazol-4-yl)amino]-2-oxoethyl] (E)-3-(2-chlorophenyl)prop-2-enoate is given. What is its corresponding molecular formula?
user
C22H20ClN3O4
assistant