You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-(2-chloro-4,6-dimethylphenyl)-2-[[4-(3-chloro-2-methylphenyl)-5-pyridin-4-yl-1,2,4-triazol-3-yl]sulfanyl]acetamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C24H21Cl2N5OS
assistant