You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[(4,5-dicyclopropyl-1,2,4-triazol-3-yl)sulfanyl]-N,N-dimethyl-2-phenylacetamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C18H22N4OS
assistant