You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 4-[[4-(2,4-dimethylphenyl)-1,2,4-triazol-3-yl]sulfanylmethyl]-2-(4-fluorophenyl)-1,3-thiazole into its molecular formula.
user
C20H17FN4S2
assistant