You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named 6-[(5,7-dimethyl-[1,2,4]triazolo[1,5-a]pyrimidin-2-yl)sulfanyl]-5-nitroimidazo[2,1-b][1,3]thiazole is given. What is its corresponding molecular formula?
user
C12H9N7O2S2
assistant