You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-(1-benzyl-3,5-dimethylpyrazol-4-yl)-3-(1,5-dimethylpyrazol-4-yl)prop-2-enamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C20H23N5O
assistant