You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-methyl-N-[4-(4-methylpiperazine-1-carbonyl)phenyl]-2-pyridin-3-yl-1,3-thiazole-5-carboxamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C22H23N5O2S
assistant