You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3,4-dimethyl-N-(5-propan-2-yl-1,3,4-thiadiazol-2-yl)-2-(tetrazol-1-yl)benzamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C15H17N7OS
assistant