You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
5-methyl-N-[(1S)-1-[4-(2-methylimidazol-1-yl)phenyl]ethyl]-1H-pyrazole-4-carboxamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C17H19N5O
assistant