You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name N-[(4-bromo-1-ethylpyrazol-3-yl)methyl]-1-(difluoromethyl)-N,3-dimethylpyrazole-4-sulfonamide into its molecular formula.
user
C12H16BrF2N5O2S
assistant