You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[6-(2-methylsulfanylphenyl)-[1,2,4]triazolo[1,5-a]pyridin-2-yl]-2-methylsulfonylacetamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C16H16N4O3S2
assistant